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A-Share · Pre-Market

A-Share Pre-Market Brief | 2026-10-05 Monday

Mon A-Share Pre-Market · 9 tables Asia/Shanghai

Machine-translated from the Chinese original. In case of any discrepancy, the Chinese version prevails.

Single-name entries 24

Show 12 more
13 比亚迪 002594 B
主板±10% Unverified
48
只看不买
14 香农芯创 300475 B
创业板±20% Unverified
48
只看不买
15 德明利 001309 B
主板±10% Unverified
47
只看不买
16 长光华芯 688048 B
科创板±20% Unverified
46
只看不买
17 北京君正 300223 B
创业板±20% Unverified
45
只看不买
18 韦尔股份 603501 B
主板±10% Unverified
45
只看不买
19 晶合集成 688249 B
科创板±20% Unverified
44
只看不买
21 中文在线 300364 C
创业板±20% Unverified
42
只看不买
22 宁德时代 300750 C
创业板±20% Unverified
41
只看不买
23 江淮汽车 600418 C
主板±10% Unverified
40
只看不买
24 东阳光 600673 C
主板±10% Unverified
39
只看不买
25 纳睿雷达 688522 C
科创板±20% Unverified
38
Pass

Scores are a subjective ordinal scale; gaps within a band carry no ranking meaning

Market holiday notice: National Day market holiday in effect (markets closed 10/1 through 10/7; trading resumes as usual from Thursday 10/8, SSE announcement). This list is the 3rd holiday special issue (no issue on the 10/3-10/4 weekend): time window = morning of 10/2 (Friday) → this morning; use it together with Issues 1 and 2; all conclusions are priced for the 10/8 reopening. Progress bar of holiday pricing: US markets have 5 trading days during the holiday (10/1-10/7); 2 are done, 3 remain (10/5-10/7). The biggest macro event of the holiday has landed: on the evening of 10/2, US September nonfarm payrolls came in at just +29,000, a major miss, and October rate-hike expectations collapsed from about 70% early in the week to about 22% at Friday's close; but "long-end Treasuries rose instead of falling after weak data" (10Y closed at 5.27%, 30Y at 5.62%), and Hong Kong stocks already fell 2.6% on 10/2 — global valuation pressure is unresolved. The 10/8 reopening is a hedge between "cooling rate-hike expectations + RMB strengthening to 6.71 + nearly 70% positive Q3 pre-announcements" and "high long-end rates"; the strength ranking completes a swap this issue: optical communications > storage. Data conventions: A-share quotes are as of the 9/30 close; US stocks as of the 10/2 close (US Eastern), i.e., early morning of 10/3 Beijing time; fundamentals are the 2026 interim reports + announcements on the evening of 9/30. Price limits: main board ±10% | ChiNext/STAR ±20% | BSE ±30%; every stock below is tagged with its board, and limit-up calls follow each board's limit. Corrections this issue (vs Issue 2): ① The meeting held 10/26-29 is the Fifth Plenary Session of the 20th CPC Central Committee (misstated as the Fourth Plenary Session in Issue 2, Lianhe Zaobao 9/21); ② For the YoY rise in DDR5 spot prices, the "+480%" cited in Issue 2 was an old caliber from late August; at the 10/2 average of USD 58.00 versus spot a year ago (in the 6.8-7.7 USD range), YoY is roughly +650% to +750% (TrendForce).


0. One-line summary for today

Day 5 of the holiday; the biggest macro variable of the holiday has landed: US September nonfarm payrolls +29,000, far below the expected 84,000-90,000; unemployment rose to 4.2%; average hourly earnings +3.0% YoY, the weakest since May 2021 (BLS) — October rate-hike expectations collapsed Friday to about 22% (a December 25bp hike remains the mainstream scenario at 73.5%-80%+, Polymarket 10/4); US stocks closed higher Friday (Nasdaq +1.19%, a record closing high), but the bond market reversed in the second hour, with long-end Treasuries closing higher, not lower (2Y 4.82%, 10Y 5.27%, 30Y 5.62%) — "the bond market has slipped out of the Fed's control" (JRJ). The main-line strength swapped during the holiday: Friday's US session saw two straight days of real gains in optical communications (Coherent +10% Thursday then another +5.59% Friday, Lumentum +3.79%, AAOI +7.71%, CRDO +4.03%, Corning +2.35%, optical-communications ETF LYTE +3.09%), while storage hardware was slammed (Western Digital -10.22%, Seagate -10.21% — Toshiba announced it would double capacity at its Philippines plant, triggering a "supply expansion" trade; SanDisk -3.79%, Micron -2.05% on profit-taking; only SK Hynix ADR rose, +0.84%) — strength ranking for the 10/8 reopening: optical communications > storage. Storage fundamentals are intact: TrendForce raised its Q4 contract-price forecasts across the board (public note: overall DRAM +15-20%, NAND +15-20%; via Goldman Sachs: PC DRAM +13-18%, enterprise SSD +23-28%); Micron's FQ1 guidance of USD 61.5 billion massively beat expectations, and the CFO confirmed over 75% of 2027 output is already locked in — Friday's US decline was in the HDD/NAND supply narrative; for the A-share storage chain (niche DRAM / interfaces / modules), 10/8 sentiment hinges on how Korean names open. Oil prices are being pulled both ways: the G7 announced a release of up to 100 million barrels of reserves over 4 months plus the US dropping its diesel export ban pressured crude (Brent settled Friday at 102.25, -2% on the week), while the Red Sea escalated again over the weekend (106 Saudi airstrikes in 24 hours, a tanker attacked), pushing Brent up +1% at Monday's open to 103.3 USD. Domestic policy was quiet and holiday consumption was mild (commercial-district revenue +5.3%, duty-free sales +8.85% in the first three days, National Day holiday box office at a 13-year low). Driver types: macro (nonfarm payrolls) · real overseas gains (optical communications) · overseas divergence (storage) · prices & geopolitics (oil & gas) · quiet domestic policy. Tone: re-review daily; final version on the evening of 10/7.


1. News roundup

No. Time Source Headline Type Branches involved Impact level Source link
1 Early hours of 10/3 CLS.cn / Eastmoney Friday US close: Nasdaq +1.19% at a record closing high, S&P +0.73%, Dow +0.49%; optical communications kept rising (Coherent +5.59%, Lumentum +3.79%, AAOI +7.71%, CRDO +4.03%, Corning +2.35%), storage slammed (Western Digital -10.22%, Seagate -10.21%, SanDisk -3.79%, Micron -2.05%; only SK Hynix ADR rose, +0.84%); Tesla +4.65% (Q3 deliveries 486,500, above expectations) Overseas markets Optical comms / storage S (main-line strength swap) Eastmoney
2 10/2 20:30 US Dept. of Labor September nonfarm payrolls added just +29,000 (expected 84,000-90,000); unemployment 4.2%; average hourly earnings +3.0% YoY, the weakest since May 2021; August revised down to 133,000, July revised to -10,000 (first negative print) Macro Whole market S (two-way: short end loose / long end tight) BLS, CLS.cn
3 Morning of 10/3 JRJ Post-payrolls, the bond market "escaped Fed control": within 1 hour of the release gold spiked to USD 4,220 and 2-7Y yields fell over 10bp; a full reversal in the second hour — 2Y closed at 4.82%, 10Y at 5.27%, 30Y at 5.62%; gold settled at 4,140 USD, down 0.9% on the day Macro Whole market / rate-sensitive A (weighing on global valuations) JRJ
4 10/4 CME / Polymarket Rate pricing collapsed in a week: October hike probability ~70% Monday → 22% Friday (Polymarket 10/4: no change 82.5%); probability of a December 25bp hike at 73.5%-80%+ Macro Whole market A JRJ, Polymarket
5 10/3 Lianhe Zaobao / CLS.cn G7 emergency decision: IEA to coordinate a release of up to 100 million barrels of crude + diesel reserves within 4 months (heavy diesel in the first 20 days); Trump announced the US would not impose a diesel export ban; the EU said it flatly rejects it Policy Oil & gas A (pressuring oil prices) Lianhe Zaobao, CLS.cn
6 Morning of 10/5 CLS.cn Red Sea–Yemen escalation: Saudi Arabia launched 106 airstrikes on Houthi-controlled areas within 24 hours (1,516 cumulative this round); a tanker exploded repeatedly 60 nautical miles south of Al-Mokha; Brent opened +1% at 103.3 USD/bbl, WTI 91.6 Geopolitics Oil & gas / tankers A (upward push, two-way) CLS.cn Telegraph
7 10/4 Reuters Iran: the Strait of Hormuz stays closed until the US meets the 7 conditions of the June interim agreement; only 1 transit on 9/27 vs a pre-crisis baseline of 85 ships/day; Qatar shuttling in mediation; Trump denies sanctions will be lifted Geopolitics Oil & gas / tankers B Reuters
8 10/2 TrendForce / Goldman Sachs 2026Q4 memory contract-price forecasts raised across the board: public note — commodity DRAM +10-15%, overall DRAM +15-20% including HBM, NAND +15-20%; details via Goldman Sachs — PC DRAM +13-18%, server DRAM +10-15%, enterprise SSD +23-28%; KB Securities forecast on 10/3 of Q4 memory +10-20% Prices Storage A (contract prices = direct input to module makers' Q4 earnings; note forecasts are not facts) ITHome, JRJ citing GS, KB Securities
9 10/2 TrendForce DDR5 16Gb (2Gx8) spot average USD 58.00 (intraday high 69.50 / low 43.50, extremely volatile); institutions quoted normally through the holiday, no suspension; vs spot a year ago (6.8-7.7 USD range), YoY roughly +650% to +750% Prices Storage A TrendForce
10 10/3 Securities Times Nearly 40 Q3 earnings pre-announcements, with a positive ratio near 70% (26 companies pre-increasing / slightly increasing / turning profitable); 134 companies in total report Q3 results between 10/8 and 10/21 (Wohua Pharmaceutical first, on 10/10) Earnings Whole market B (endogenous support for the reopening) Securities Times, JRJ
11 10/3 Ministry of Commerce Anti-dumping investigation launched into p-nitrotoluene imported from the EU (at the request of Jiangsu Huaihe Chemical and Hubei Dongfang Chemical) Policy Chemicals C (no direct A-share confirmation) MOFCOM
12 10/5 Xinhua First three days of the holiday: foot traffic / revenue at 78 key commercial districts +3.4%/+5.3%; trade-in programs drove RMB 19.63 billion in sales; railways carried 25.204 million passenger trips on 10/1, a single-day record; Hainan offshore duty-free sales RMB 358 million in the first three days, +8.85% Consumption Consumer chain C Xinhua, CLS.cn
13 10/3 CCTV National Day holiday box office about RMB 175 million on day one, a 13-year low since 2012; first-four-day total above RMB 700 million, with single-day takings above RMB 100 million for 4 straight days Consumption Film & cinema C (negative) CCTV
14 10/4 Securities Times Mate90 channel checks: the standard version and Pro are in stock; the Pro Max / Collector's Edition / RS are out of stock but can be pre-ordered; official sales figures still not released as of publication Event Huawei chain B (shortage = sentiment can continue, no numbers) Securities Times
15 10/2 Caixin JAC Motors unusual-movement announcement: confirmed there have indeed been communications and cooperation talks with Huawei and Stellantis (responding to the "Maserati China genes" rumor; 3 limit-ups in 6 days before the holiday); there are also reports of Seres "re-signing" with Huawei, terms unclear Announcement Huawei chain / autos B (rumor-grade) Caixin – JAC, Caixin – Seres
16 10/2 CLS.cn CATL: board reviews Q3 results on 10/20; Phase-2 employee stock ownership plan of RMB 1.28 billion at a transfer price of RMB 158.42/share, covering nearly 6,000 core employees Announcement Lithium battery B CLS.cn
17 10/3 NDRC / Ministry of Finance (carried over from 9/30 reports) Fourth batch of RMB 62.5 billion in trade-in funds allocated; the full-year RMB 250 billion is now all in place; three holiday days have already driven RMB 19.63 billion in sales Policy Consumer chain C SMM
18 10/2 HKEX / media Hong Kong stocks plunged 2.6% on 10/2 (Hang Seng Index at twenty-three thousand nine hundred and seventy-two points, largest single-day drop since March 23): HSBC -5.38%, AIA -5.98%; trigger = surging Treasury yields + the Stock Connect southbound channel being closed, leaving no southbound buying; HK market opens normally on 10/5, but Stock Connect remains closed Overseas markets Whole market A (reopening sentiment warning) Sina Finance

Slow-variable tracking: ① 3 US trading days remain in the holiday (10/5-10/7) + the FOMC minutes at the early hours of 10/8; ② a December hike is still the mainstream scenario — whether long-end Treasuries (10Y 5.27% / 30Y 5.62%) can fall back is the lifeline for growth stocks on 10/8; ③ the two-way oil switch: Red Sea / Strait of Hormuz attack frequency vs the pace of G7 reserve releases (heavy diesel in the first 20 days); ④ FTSE A50 futures previous settlement 14,022 points (Eastmoney), offshore RMB 6.7065 (sharply stronger this year, Investing.com); ⑤ Hong Kong market movement over 10/5-10/7 (Stock Connect absent — sentiment preview only); ⑥ Mate90 daily first-sales / official scorecards; ⑦ the 10/8 reopening brings a dense batch of 134 Q3 reports + TSMC's September revenue; ⑧ the Fifth Plenary Session of the 20th CPC Central Committee on 10/26-29; ⑨ the revised Integrated Circuit Layout-Design Protection Regulations take effect on 10/15.


2. Strongest bullish branches, ranked

Branch dictionary for the whole issue: optical communications / optical modules (two straight real gains during the holiday, up to No. 1) | storage supercycle (first overseas divergence, fundamentals intact) | oil & gas / tanker shipping (two-way tug-of-war) | semiconductor equipment / domestic chain | Huawei chain (Mate90 shortages + JAC confirming talks; no verifiable main-attack target this issue) | auto chain (September sales) | shareholder increases, buybacks & events | consumer & tourism (mild holiday data). Each stock belongs to exactly one branch; Sections 3 and 7 are consistent with this section. Branch strength uses S/A+/A/B+/B/C; a stock's bullish level may float half a notch up or down from its branch strength based on company-level evidence (e.g., ACM Shanghai at B+ is above its branch's B because its backlog is direct, company-announcement-grade evidence).

Rank Branch Strength Core news Logic hardness Durability Benefit path Representative stocks Risks
1 Optical comms / optical modules A+ (up) Second day of sector-wide real gains in Friday's US session: Coherent +5.59%, Lumentum +3.79%, AAOI +7.71%, CRDO +4.03%, LYTE ETF +3.09%; NVIDIA +1.34% intraday record Extremely high (two straight real gains + visible orders) Quarter-level (cloud-vendor capex cycle) 800G/1.6T demand → module / component / optical-chip orders Zhongji Innolight 中际旭创 (300308), Eoptolink 新易盛 (300502), TFC 天孚通信 (300394) Long-end Treasuries at 5.3-5.6% press valuations; 3 US trading days remain in the holiday
2 Storage supercycle A (down) Friday's US session slammed storage hardware (Toshiba's capacity expansion triggered a supply trade), but Q4 contract-price forecasts were raised across the board, Micron's guidance massively beat, and SK Hynix ADR rose alone Extremely high (contract prices + maker guidance), but the first trading-side divergence Multi-year (2027-2028) Price rises → niche follow-through / inventory gains / interface-chip volumes GigaDevice 兆易创新 (603986), Montage 澜起科技 (688008), Longsys 江波龙 (301308), BIWIN 佰维存储 (688525) Friday's real US decline → 10/8 opening sentiment set by how Korean names open; module makers' cash-flow/inventory triple-peak
3 Oil & gas / tanker shipping B+ (unchanged) Weekend Red Sea escalation (106 Saudi airstrikes, tanker attacked, Brent opening at 103.3) vs G7 release of 100 million barrels + the US dropping the diesel ban Medium-high (two-way events) Event-driven (two-way with war / negotiations) Blockade → freight-rate risk premium (TD3C broke USD 1 million/day in mid-September); oil prices → upstream earnings COSCO Shipping Energy 中远海能 (600026), China Merchants Energy Shipping 招商轮船 (601872) Two-way branch: a ceasefire means an immediate pullback; G7 releases pressure oil sentiment
4 Semiconductor equipment / domestic chain B ACM Shanghai backlog RMB 17.073 billion, +88.2% (evening of 9/30, carried over); the Integrated Circuit Layout-Design Protection Regulations take effect on 10/15 High (company-announcement grade) Order conversion over 12-18 months Domestic capacity expansion → cleaning / photomask orders ACM Shanghai 盛美上海 (688082), Nexchip 晶合集成 (688249) ACM's ex-non-recurring -15.3% vs net-profit +42% scissors gap; 84.5x PE
5 Huawei chain B Mate90 high-end versions remain out of stock (pre-orders possible); JAC confirmed talks with Huawei / Stellantis (after 3 limit-ups in 6 days) Medium (event-driven) Holiday fermentation; watch official scorecards Sales → supply-chain order verification (no BOM evidence yet) Will Semiconductor 韦尔股份 (603501 — sentiment mapping; no verifiable main-attack target this issue) No official sales figures; supply-chain name-drops unsourced; JAC is a high-position rumor-grade name
6 Auto chain B BYD: 463,600 in September, +16.99%; exports 180,700; Q2 per-vehicle profit improved after adjusting for forex (analyst caliber) High (announcement) but diverging Monthly data Sales → Q3 results; high-margin exports offset the price war BYD 比亚迪 (002594) Cumulative -3.94% for January-September; the price war continues
7 Shareholder increases, buybacks & events B Dongyangguang's controlling shareholder to increase holdings by up to RMB 1.2 billion (evening of 9/30, carried over) Medium 6 months Sentiment endorsement HEC Technology 东阳光 (600673) Debt ratio 71%+ with ~40% of shares pledged
8 Consumer & tourism (holiday data) C Commercial-district revenue +5.3%, duty-free sales +8.85% in the first three days, but the National Day holiday box office hit a 13-year low Medium (muted data) Holiday events Data → sector pulses No main-attack target Muted data; does not constitute a reopening main line

Branch notes:

  • Optical communications (No. 1, upgraded this issue): This is the first time in the holiday that "the same branch posts sector-wide real gains on two consecutive US trading days" — Coherent +10% on 10/1 and another +5.59% on 10/2, Lumentum up two days in a row, AAOI (small-cap optical components) +7.71%, and NVIDIA's two-day rally to an intraday high endorsing total compute demand. Two consecutive days of capital behavior is harder evidence than any narrative; the A-share optical-module chain is a high-certainty mapping for the 10/8 reopening. But note this issue's evidence is entirely price action — Innolight / Eoptolink have no new company-level announcements during the holiday (order-type hard catalysts are absent; quality control has logged this as a data gap). The suppressors are unchanged: long-end Treasuries at high levels, and volatility across the holiday's remaining 3 US trading days.
  • Storage (No. 2, downgraded this issue): You must separate the "trading" layer from the "fundamentals" layer. Trading: Friday's US session saw a rare single-day plunge in the HDD/storage-equipment chain (Western Digital / Seagate -10%); the trigger was Toshiba's announcement that it would double capacity at its Philippines plant before FY2027 — the market traded "supply will eventually expand." SanDisk and Micron (up on 10/1 after earnings, then -2.05% Friday on profit-taking) fell along; only SK Hynix ADR closed higher, showing capital split between "DRAM scarcity" and "NAND/HDD supply expansion." Fundamentals: TrendForce raised Q4 contract-price forecasts on 10/2 (overall DRAM +15-20%, NAND +15-20%; eSSD +23-28% via Goldman Sachs); Micron's FQ1 guidance of USD 61.5 billion (up another ~13% QoQ), the CFO's confirmation that over 75% of 2027 output is locked in, and HBM sold out through 2027 — the makers' multi-year commitments show no loosening whatsoever. The A-share storage chain is mainly DRAM niche (GigaDevice), interfaces (Montage), and modules (Longsys / BIWIN) — a different line from Friday's US NAND/HDD supply narrative, though opening sentiment will inevitably be dragged; on the morning of 10/8, watch how Korean stocks open at 9:00 (SK Hynix / Samsung). All contract prices and guidance above are institutional forecasts / company guidance, not accomplished facts.
  • Oil & gas / tanker shipping (No. 3): Forces on both sides strengthened simultaneously during the holiday — pressing: the G7 releasing up to 100 million barrels over 4 months (heavy diesel in the first 20 days, directly hitting diesel crack spreads) and the US dropping the diesel ban; pushing: the weekend Red Sea escalation (106 Saudi airstrikes, tanker explosions, Brent opening at 103.3). Note the core driver of tanker shipping is not oil prices but the effective capacity lost to blockades: TD3C equivalent time-charter rates broke USD 1 million/day in mid-September (1.099 million on 9/15, 1.2125 million on 9/17, +425% vs pre-conflict; Q2 average USD 427,000/day, +1008% YoY) — no public prints for the latest rates since October (they eased ahead of the holiday on de-escalation hopes and heated up again over the weekend); actual levels to be verified; if rates hold at the plateau, a high QoQ rise for the two state-owned tanker majors in Q3 is a high-probability event (an inference, not a disclosure), but if there is a ceasefire / resumed navigation, rates will fall just as fast. Keep at B+, a two-way branch.
  • Huawei chain (No. 5): Mate90 high-end versions staying out of stock says demand is not weak, but the constraint of "no official sales figures" is unchanged; supply-chain (CIS / panels / PCB) name-drops still lack authoritative teardown sources. JAC Motors' "confirmed talks" is a high-position rumor-grade confirmation (talks ≠ orders) — fine for holiday fermentation, not fine as a main attack. No verifiable main-attack target in this branch this issue.
  • Auto chain (No. 6): BYD's September numbers are positive (record single month, exports 180,700), and Q2 core per-vehicle profit hit a recent-year high after adjusting out about RMB 8 billion in forex losses (Tencent News 8/31 — broker/media analyst caliber, not announcement figures); but the cumulative January-September figure is -3.94%, the price war continues — keep at B.

3. Overall stock bullishness ranking

Ranked in descending order by the Section 4 scoring model (whole-market coverage; main board, ChiNext, and STAR treated alike; ordered by evidence strength). Holiday special: all conclusions target the 10/8 reopening. Changes vs Issue 2: Zhongji Innolight 中际旭创 +3 to No. 1 (optical communications' two straight real gains), Eoptolink 新易盛 +4 to No. 3 (GB300 1.6T second-source share + gross margin above Innolight + Q2 QoQ +70.8%), TFC 天孚通信 +2, COSCO Shipping Energy 中远海能 +1 (Red Sea escalation + freight-rate plateau), Giantec 聚辰股份 -2 (most of the profit surge comes from fair-value changes and other non-recurring items — a temperature gap vs the DDR5 narrative); GigaDevice / Montage / Longsys / BIWIN unchanged.

Rank Code Name Board Branch Bullish level Total Core news Bullish path Benefit directness Fundamentals / industry position Expectation gap Technical sentiment Risks Conclusion
1 300308 Zhongji Innolight 中际旭创 ChiNext ±20% Optical comms A+ 74 Coherent +5.59% / Lumentum +3.79% on Friday — two straight real gains; NVIDIA intraday record AI capex → direct 800G/1.6T orders High (94%+ of revenue from overseas) Global No. 1 in optical modules by 2025 sales (LightCounting caliber); H1 net profit attributable to parent RMB 13.65 billion, +242%; Q2 QoQ +38% PE (TTM) ~44x (9/30 close caliber) Huge 9/30 volume (RMB 12.85 billion) yet resilient; two straight overseas endorsements Operating cash flow -44% (cash-to-profit ratio 0.13); Treasuries at high levels priority deep-dive
2 603986 GigaDevice 兆易创新 Main board ±10% Storage A 72 Q4 contract-price forecasts raised across the board; SK Hynix ADR rose alone Friday; DDR5 spot at USD 58, YoY roughly +650% to +750% Niche DRAM / NOR follow-through → gross margin stepping up quarter by quarter (Q2 66.6%) Medium-high NOR flash global No. 2 (share ~18.5-20%); H1 net profit attributable to parent RMB 6.86 billion, +1091%; operating cash flow RMB 6.05 billion — best in the chain; debt ratio 11.5% ~47% pullback from the July high; PE (TTM) ~31x 9/30 volume down -3.72% — completed earnings-risk hedging Friday's US storage sentiment drags the open; cycle reversal priority deep-dive
3 300502 Eoptolink 新易盛 ChiNext ±20% Optical comms A 68 Same as Zhongji Innolight (two straight real gains); GB300 1.6T second-source share 800G/1.6T orders + cloud-vendor long-term agreements High One of the optical-module duopoly; H1 net profit attributable to parent RMB 7.53 billion, +91%; gross margin 48.4%, above Innolight; Q2 QoQ +70.8% Valuation below peers (with a higher gross margin) Pulled back with the optical-module sector before the holiday; two straight overseas endorsements Concentration in five North American customers; no announcement evidence for single-customer share priority deep-dive
4 688008 Montage Technology 澜起科技 STAR ±20% Storage / interfaces A 67 Q4 server DRAM contract prices +10-15% (forecast); Micron HBM sold out through 2027 Server DIMM volume + sub-generation upgrades → interface chips gain in "volume and structure" High (gains from volume, not price hikes) Global No. 1 in memory interfaces (36.8% share); H1 net profit attributable to parent RMB 2.00 billion, +72%; gross margin 65.3%; debt ratio 7.5% PE (TTM) ~80x — high growth already priced in The most solid quality in the chain Korean prosecutors' antitrust raid (since 7/16) hanging overhead; ex-non-recurring growth below headline priority deep-dive
5 301308 Longsys 江波龙 ChiNext ±20% Storage A 66 Q4 contract prices raised (eSSD +23-28% via Goldman Sachs, forecast caliber) Low-cost inventory revaluation + price-hike pass-through; H1 gross margin 58.9% (61.3% in Q2 alone) High China's leading independent module maker; H1 net profit attributable to parent RMB 10.58 billion, +71529% YoY (only RMB 10 million in the prior-year period); enterprise revenue RMB 2.14 billion, +208.8% PE (TTM): classic cyclical low-PE trap Already pulled back ~13% in late September Operating cash flow -RMB 3.15 billion, inventory RMB 25.78 billion = 60.1% of total assets (both as of 6/30; Q3 changes await the Q3 report); Friday's US NAND decline transmits sentiment watch closely
6 688525 BIWIN Storage 佰维存储 STAR ±20% Storage A 65 Same as Longsys; Micron's data-center SSD revenue neared USD 10 billion in a single quarter Edge-AI storage + inventory gains; H1 swung to profit of RMB 7.17 billion (within the 7.0-7.5 billion pre-announcement range) High Independent storage maker with the world's No. 2 embedded storage (Frost & Sullivan caliber) PE (TTM) ~11x Interim dividend of RMB 4.24 per 10 shares — rare for a cyclical name Operating cash flow -RMB 6.26 billion + inventory RMB 18.17 billion = 54.5% of assets + debt ratio 61.6% — triple-peak signal (as of 6/30) watch closely
7 300394 TFC Optical 天孚通信 ChiNext ±20% Optical comms B+ 61 Same as Zhongji Innolight (two straight real gains; components move first) Optical components supporting 800G / 1.6T / CPO Medium-high Optical-component platform company; H1 net profit attributable to parent RMB 1.20 billion, +34%; gross margin 60.9%; operating cash flow RMB 1.00 billion PE (TTM) ~122x — very expensive Pulled back before the holiday; two straight overseas endorsements High valuation amplifies drawdowns; growth below the module duopoly watch closely
8 688082 ACM Shanghai 盛美上海 STAR ±20% Semiconductor equipment B+ 59 Backlog RMB 17.073 billion, +88.2% (announced 9/30; company notes unaudited) Orders → revenue conversion (12-18 months) High (orders are real) Domestic cleaning-equipment leader (60.5% share among domestic makers); electroplating as a second curve PE (TTM) 84.5x — already expensive Announcement-grade orders; the most recognizable equipment name Scissors gap between ex-non-recurring -15.3% and net profit +42% (subsidy-driven); H1 operating cash flow of only RMB 90 million watch closely
9 600026 COSCO Shipping Energy 中远海能 Main board ±10% Oil & gas / tankers B+ 57 Weekend Red Sea escalation + Brent opening at 103.3; TD3C broke USD 1 million/day in mid-September (+425% vs pre-conflict) Blockade → effective capacity loss → foreign-trade tanker rates (H1 foreign-trade tanker gross profit +262%) Medium-high (rates are direct) World's largest oil-tanker fleet; H1 net profit attributable to parent RMB 4.54 billion, +143% (recomputed from the report; media figure +141%) High QoQ growth in Q3 is a high-probability event, partly priced in Tanker rates eased ahead of the holiday on de-escalation hopes, heated up again over the weekend Two-way branch: a ceasefire / resumed navigation means an immediate pullback; G7 releases pressure oil sentiment; no public rate prints for October — to be verified watch closely
10 688123 Giantec Semiconductor 聚辰股份 STAR ±20% Storage B 53 Q4 DRAM contract prices raised (forecast); DDR5 penetration rising DDR5 penetration → SPD / EEPROM volume ramp Medium DDR5 SPD share above 40% (prospectus caliber), EEPROM global No. 2; but of the H1 net profit attributable to parent of RMB 530 million, about RMB 480 million came from one-off items such as fair-value changes; revenue only +4.7%, gross margin down YoY Small-cap elasticity Pulled back with the sector on 9/30 Small core-profit base; earnings have not delivered the DDR5 narrative watch closely
11 601872 China Merchants Energy Shipping 招商轮船 Main board ±10% Oil & gas / tankers B+ 52 USD 2.8 billion 25-year VLOC long-term agreement + linkage to tanker rates Volume locked, price not (about RMB 800 million/year, ~2.8% of revenue); tanker segment H1 net profit +379% Low (little LT-agreement elasticity) 50 VLCCs and 37 VLOCs — world No. 1; H1 net profit attributable to parent RMB 6.96 billion, +228% PE (TTM) ~15x, PB 3.5x at a high percentile Events are real, elasticity is limited Tanker-rate pullback; newbuild deliveries in 2029-2030 watch closely
12 301486 Zhishang Technology 致尚科技 ChiNext ±20% Optical comms B 51 USD 500 million MPO memorandum (evening of 9/30) + two straight optical-communications gains 2027 MPO demand locked in; elasticity = 3.4x 2025 revenue Medium (MOU, not orders) Growing niche player in MPO (not the leader) Small cap (~RMB 24.5 billion market cap), big sentiment elasticity Holiday fermentation name with two straight overseas endorsements TTM loss, ex-non-recurring profit of RMB 5.24 million, PB 9.5x — fundamentals can't catch the sentiment watch only
13 002594 BYD 比亚迪 Main board ±10% Auto chain B 48 September sales 463,600, +16.99%; exports 180,700; Q2 per-vehicle profit improved after adjusting for forex (analyst caliber) Sales → Q3 results; high-margin exports offset the price war High (announcement data) Global NEV leader; H1 net profit attributable to parent RMB 12.33 billion, -20.5% Cumulative -3.94% for January-September — volume for price Routine monthly disclosure, not a surprise The price war continues; Q3 forex-base disturbance watch only
14 300475 Shannon Xinchuang 香农芯创 ChiNext ±20% Storage B 48 Q4 contract prices raised (forecast); SK Hynix ADR rose alone SK Hynix distribution → direct beneficiary of price hikes Medium-high Memory-distribution leader Thin distribution margins High-volatility old theme Distribution model has less profit elasticity than modules; Friday's US sentiment transmits watch only
15 001309 Demingli 德明利 Main board ±10% Storage B 47 Q4 contract prices raised (forecast) Module price-hike elasticity High Consumer-grade modules — an elasticity play Small-cap, high volatility Large prior gains Second-tier; fundamentals weaker than the leaders watch only
16 688048 Everbright Photonics 长光华芯 STAR ±20% Optical comms B 46 Chairman said optical-communications revenue is growing fast (9/30 earnings call, carried over) + two straight overseas gains Optical-chip volume ramp (soft news) Medium A scarce domestic optical-chip IDM — Earnings-call remarks fermenting over the holiday Chairman himself flagged "price cuts not ruled out in the long run"; unverified in H1 watch only
17 300223 Ingenic 北京君正 ChiNext ±20% Storage B 45 Q4 contract prices raised (forecast) Automotive / niche memory follow-through Medium Automotive memory + computing chips — Second-tier catch-up profile Muted auto demand; no new announcements watch only
18 603501 Will Semiconductor 韦尔股份 Main board ±10% Huawei chain B 45 Mate90 high-end versions remain out of stock (official sales not released) Historical supply relationship → sentiment mapping; no BOM evidence Low (H1 mobile CIS revenue -31%) Top 3 globally in CIS, first tier in automotive Q3 guidance: revenue / gross margin recovering QoQ One of the Huawei-chain sentiment main tickets Rising revenue without profit: H1 net profit attributable to parent -39.9%; media named SmartSens 思特威 for the main camera watch only
19 688249 Nexchip 晶合集成 STAR ±20% Semiconductor equipment / materials B 44 Photomask asset consolidation (evening of 9/30, carried over); layout-design regulations effective 10/15 Wafer + photomask synergy Medium Second-tier domestic foundry — Asset-consolidation narrative Asset injection ≠ new orders; thin profitability watch only
20 600938 CNOOC 中国海油 Main board ±10% Oil & gas Linked, unscored — Brent opened at 103.3 USD Oil prices → extraction earnings / output High (direct oil-price exposure) Offshore oil & gas leader (linked watch position) — Moves with oil prices Oil prices are two-way; G7 releases directly pressure upstream sentiment watch only
21 300364 ChineseAll 中文在线 ChiNext ±20% AI applications C 42 RMB 2.833 billion private placement into AI (evening of 9/30, carried over) AI-application narrative + refinancing completed Low Digital-content leader; small AI revenue share — Event fermentation Placement dilution; AI monetization unproven watch only
22 300750 CATL 宁德时代 ChiNext ±20% Lithium battery C 41 Phase-2 employee stock plan RMB 1.28 billion at 158.42; board reviews Q3 on 10/20 Price anchor + governance signal; Q3 reporting approaching Low Global power-battery leader Discount-to-anchor to be verified Solid-state high-flyers cooling, dragging the sector Weak sector sentiment; no new holiday catalysts watch only
23 600418 JAC Motors 江淮汽车 Main board ±10% Huawei chain C 40 Unusual-movement announcement confirms talks with Huawei and Stellantis (10/2; 3 limit-ups in 6 days before the holiday) Sentiment spillover (talks ≠ orders) Low Mainly commercial vehicles; weak fundamentals — High-position divergence after 3 limit-ups in 6 days High position + a clarifying-style announcement = high uncertainty watch only
24 600673 HEC Technology 东阳光 Main board ±10% Shareholder increase / buyback C 39 Controlling shareholder to increase holdings by up to RMB 1.2 billion (evening of 9/30, carried over) Real-money sentiment endorsement Low First tier in refrigerant quotas; H1 net profit attributable to parent -36.5%, debt ratio 71.3% The increase ceiling is only ~1.31% of market cap Holiday fermentation type High leverage + high pledging (~40%) + very slow AI-order delivery watch only
25 688522 Naruida 纳睿雷达 STAR ±20% Optical comms C 38 RMB 162 million acquisition of 51% of Xintai Communications (evening of 9/30, carried over) Cross-over into optical communications; small scale Low Phased-array radar maker crossing over — Second tier M&A integration risk; no AI-compute accumulation in the main business Pass

4. Stock scoring model

Total score = sum of seven base components (capped at 95) + risk deduction (0 to -15). Components and weights: source authority 0-15 / benefit directness 0-20 / earnings elasticity 0-15 / industry position & fundamentals 0-15 / expectation gap 0-10 / theme durability 0-10 / A-share trading traits 0-10 / risk deduction 0 to -15.

Stock Authority Directness Elasticity Position / fundamentals Expectation gap Durability Trading traits Risk deduction Total
Zhongji Innolight 中际旭创 (300308) 14 16 14 14 5 9 9 -7 74
GigaDevice 兆易创新 (603986) 14 13 14 13 7 9 8 -6 72
Eoptolink 新易盛 (300502) 13 15 14 13 5 8 7 -7 68
Montage Technology 澜起科技 (688008) 14 16 11 14 4 9 7 -8 67
Longsys 江波龙 (301308) 12 16 14 12 6 8 7 -9 66
BIWIN Storage 佰维存储 (688525) 12 16 14 11 6 8 8 -10 65
TFC Optical 天孚通信 (300394) 12 13 10 12 5 8 7 -6 61
ACM Shanghai 盛美上海 (688082) 14 13 9 12 4 9 7 -9 59
COSCO Shipping Energy 中远海能 (600026) 13 12 10 13 5 6 7 -9 57
Giantec Semiconductor 聚辰股份 (688123) 12 12 8 12 4 8 6 -9 53

(Stocks below No. 11 get simplified ratings, same caliber; sub-scores omitted — see Section 3 for totals.) Scoring notes: Zhongji Innolight risk deduction -7 (operating cash flow -44%, cash-to-profit ratio 0.13 — the divergence from profit must be counted); Montage -8 (the Korean prosecutors' antitrust raid hanging overhead + valuation double-kill risk); COSCO Shipping Energy durability just 6 (rates depend on the war and negotiation progress — more event-driven than storage's "makers' multi-year commitments"), risk -9 (G7 releases + ceasefire both point down, and there are no public rate prints for October); Giantec -9 (of the RMB 530 million net profit attributable to parent, about RMB 480 million is one-off items such as fair-value changes; revenue only +4.7%, gross margin down YoY). All fundamental data were independently cross-checked via the akshare financial-statement API (2026 interim reports; cross-check date 2026-10-05) — see Section 5.


5. Top 10 stocks in detail

51 Zhongji Innolight 中际旭创300308Optical comms · No. 1 overall · priority deep-dive (A+/74) · ChiNext ±20%

  • Related news: The second day of the optical-communications sector's two straight real gains on 10/2 (US Eastern) — Coherent +5.59%, Lumentum +3.79%, AAOI +7.71%, CRDO +4.03%, Corning +2.35%, optical-communications ETF (LYTE) +3.09% (Eastmoney); NVIDIA +1.34%, an intraday record of USD 237.88, endorsing total compute demand. No new company-level announcements during the holiday.
  • Bullish logic: A direct-order-type positive. Cloud-vendor capex → 800G ramp + 1.6T starting; about 94% of the company's revenue comes from overseas cloud vendors. The two straight sector-wide real gains are the most direct sentiment and pricing mapping for the 10/8 reopening — what they affect is order visibility and valuation, not pure sentiment.
  • Branch stage: Late fermentation nearing climax. A-share optical modules showed huge volume with resilience on 9/30; the two overseas gains leave room for a gap-up at the reopening. The formation is complete — heavyweights (Innolight / Eoptolink) + components (TFC) — with no limit-up ladder yet (no limit-up on 9/30): a "trending main upward move," not a consecutive-limit-up theme.
  • Fundamental verification: H1 revenue RMB 41.78 billion, +182.5%; net profit attributable to parent RMB 13.65 billion, +241.7%; Q2 single-quarter net profit RMB 7.92 billion, QoQ +38.1%; gross margin 46.3% (akshare cross-check). The flip side you must see at the same time: H1 operating cash flow of just RMB 1.80 billion, -44% YoY, cash-to-profit ratio ~0.13 — receivables/inventory pressure under rapid revenue growth is common to this cycle and is counted in the risk deduction.
  • Industry position: Global No. 1 in optical modules by share (LightCounting 2025 sales caliber); Eoptolink second.
  • Technical sentiment: ChiNext ±20%; 9/30 volume of RMB 12.85 billion, price resilient — chips changed hands ahead of the holiday; the gap-up magnitude at the reopening depends on whether optical communications can keep rising over the holiday's remaining 3 US trading days.
  • Final call: The name with the hardest real-gain evidence this holiday — priority deep-dive; verification points = the gap-up magnitude and volume absorption at the 10/8 open; if the gap-up exceeds 8%, watch for intraday divergence.

52 GigaDevice 兆易创新603986Storage · No. 2 overall · priority deep-dive (A/72) · main board ±10%

  • Related news: TrendForce raised Q4 contract-price forecasts on 10/2 (overall DRAM +15-20%, NAND +15-20%, ITHome, forecast caliber); DDR5 16Gb spot average USD 58.00, YoY roughly +650% to +750% vs a year ago (TrendForce); Friday's US storage hardware was slammed but SK Hynix ADR rose alone +0.84% — capital split between "DRAM scarcity vs NAND/HDD supply expansion," and GigaDevice sits on the kept side.
  • Bullish logic: Niche DRAM + NOR follow-through benefits directly, affecting quarter-by-quarter gross margin (Q2 already 66.6%) and full-year earnings upgrades; not a sentiment mapping.
  • Branch stage: The first overseas divergence within an ongoing main upward move. Makers' multi-year commitments are unchanged; the first real US decline appears on the trading side. 10/8 opening sentiment will be set by how Korean names (SK Hynix / Samsung) open.
  • Fundamental verification: H1 revenue RMB 11.57 billion, +178.7%; net profit attributable to parent RMB 6.86 billion, +1091.5%; Q2 gross margin 66.6%; operating cash flow RMB 6.05 billion (best in the chain); debt ratio just 11.5% (akshare cross-check). NOR flash is global No. 2 (share ~18.5-20%, Omdia / Frost & Sullivan caliber; Issue 2's "top three" phrasing was conservative).
  • Industry position: NOR global No. 2; China's leading memory designer; a scarce mainland niche-DRAM target.
  • Technical sentiment: Main board ±10%; ~47% pullback from the July high, PE (TTM) ~31x — better position and odds than the chain's high-valuation names; 9/30 volume down -3.72% completed earnings-risk hedging.
  • Final call: The storage-chain name with "the smallest overseas-sentiment shock and the hardest fundamentals" — priority deep-dive; risk = Friday's US storage sentiment dragging the first 30 minutes of the 10/8 open.

53 Eoptolink 新易盛300502Optical comms · No. 3 overall · priority deep-dive (A/68) · ChiNext ±20%

  • Related news: Same as Zhongji Innolight (two straight real gains in optical communications); at the company level it won a second-source share of NVIDIA's GB300 1.6T, with small-batch validation in Q2 and capacity ramping in H2 (Sina 7/19), plus 2026-2030 long-term agreements with Meta / Microsoft / Amazon (Caixin).
  • Bullish logic: Direct-order type. 1.6T is the 2027 elasticity source; the LTAs lock in the demand base; under two straight real gains, its elasticity is the same source as Innolight's.
  • Branch stage: Same as Innolight (trending main upward move).
  • Fundamental verification: H1 revenue RMB 20.91 billion, +100.3%; net profit attributable to parent RMB 7.53 billion, +91.0%; gross margin 48.4%, 2.1pct above Zhongji Innolight; Q2 net profit RMB 4.75 billion, QoQ +70.8% (akshare cross-check).
  • Industry position: One of the optical-module duopoly, ~20% global share in 800G.
  • Technical sentiment: ChiNext ±20%; pulled back with the sector before the holiday, endorsed by two overseas gains; more elastic than Innolight, and more volatile.
  • Final call: The best "quality-to-valuation match" within optical communications — priority deep-dive; risk = concentration in five North American customers (~95-96% overseas share), with no announcement evidence for the exact single-customer share — do not cite media estimates.

54 Montage Technology 澜起科技688008Storage / interfaces · No. 4 overall · priority deep-dive (A/67) · STAR ±20%

  • Related news: Q4 server DRAM contract-price forecast +10-15% (TrendForce, forecast caliber); Micron's HBM sold out through 2027, with over 75% of 2027 output already locked in (Wallstreetcn relaying the earnings call) — total server-memory expansion is the "volume and structure" logic for interface chips.
  • Bullish logic: Rising DDR5 penetration and larger per-module capacity → RCD / SPD / MRCD interface chips gain in both unit count and value; it gains from volume, not price hikes — high earnings quality.
  • Branch stage: The most fundamentally solid "picks-and-shovels" name, not directly hit by Friday's US HDD/NAND supply narrative.
  • Fundamental verification: H1 revenue RMB 3.34 billion, +26.7%; net profit attributable to parent RMB 2.00 billion, +72.3%; gross margin 65.3%; debt ratio 7.5%; operating cash flow RMB 1.33 billion (akshare cross-check). The memory-interface triopoly (Montage / Renesas / Rambus) holds a combined share above 93%, with Montage first globally at 36.8% (Frost & Sullivan).
  • A risk fact that must be added: On 2026-07-16, Korean prosecutors launched an antitrust raid on three memory-interface chip companies; Montage's A/H shares plunged over two days (Leida Finance et al.; no new developments seen as of publication — to be verified) — the regulatory overhang is a permanent valuation discount until the investigation lands.
  • Technical sentiment: STAR ±20% (500,000 CNY / 2-year access threshold); PE (TTM) ~80x with high growth priced in; pulled back with STAR on 9/30.
  • Final call: Priority deep-dive, but treat it position-wise as a "high-score white horse," not an "elasticity theme"; verification points = any new developments in the Korean raid and the final magnitude of Q4 server DRAM contract prices.

55 Longsys 江波龙301308Storage · No. 5 overall · watch closely (A/66) · ChiNext ±20%

  • Related news: Q4 contract-price forecasts raised — enterprise SSD +23-28% via Goldman Sachs (JRJ, forecast caliber); Friday's US declines in Western Digital / Seagate (-10% area) were triggered by Toshiba's supply expansion — a sentiment negative on the NAND/HDD line, not the same source as Longsys's "low-cost inventory + price pass-through" profit logic, but opening sentiment will be infected.
  • Bullish logic: Profit = (spot/contract spread) × inventory revaluation; the H1 gross margin of 58.9% (61.3% in Q2) comes exactly from this; enterprise SSD (revenue RMB 2.14 billion, +208.8%) opens a second curve.
  • Branch stage: A high-beta name in the first divergence of an ongoing main move.
  • Fundamental verification: H1 revenue RMB 24.09 billion, +136.3%; net profit attributable to parent RMB 10.58 billion, +71529% YoY (only RMB 10 million in the prior-year period); the flip-side numbers are just as glaring: operating cash flow -RMB 3.15 billion, inventory RMB 25.78 billion = 60.1% of total assets, debt ratio 56.1% (all as of 6/30; Q3 changes await the Q3 report) (akshare cross-check). No third-party ranking source was found for "China's No. 1 enterprise SSD"; the accurate phrasing is "one of the few independent module makers in China with scaled shipments of the eSSD + RDIMM combination."
  • Industry position: China's leading independent module maker (dual brands).
  • Technical sentiment: ChiNext ±20%; already pulled back ~13% in late September; PE (TTM) ~11.6x is a classic cyclical low-PE trap.
  • Final call: Watch closely; verification points = whether it can quickly recover after an opening dragged by US storage sentiment on 10/8, and the Q4 contract-price pass-through guidance for gross margin.

56 BIWIN Storage 佰维存储688525Storage · No. 6 overall · watch closely (A/65) · STAR ±20%

  • Related news: Same as Longsys; the company swung to an H1 profit of RMB 7.17 billion, within the 7/15 pre-announcement range (7.0-7.5 billion), with figures cross-checked by akshare as true — against the backdrop of the storage supercycle + low-cost-inventory dividend (full-year 2025 net profit attributable to parent was only RMB 850 million).
  • Bullish logic: Edge-AI storage (phones / PCs / wearables) capacity upgrades + price pass-through; wafer-level packaging and testing bring cost and customization moats.
  • Branch stage: Same as Longsys; the stock fell 15% on the pre-announcement day (7/16) — the market is already trading "the dividend is unsustainable."
  • Fundamental verification: H1 revenue RMB 15.57 billion, +298.1%; gross margin 54.8%; operating cash flow -RMB 6.26 billion, inventory RMB 18.17 billion = 54.5% of assets, debt ratio 61.6% — the triple-peak signal is more concentrated than Longsys's (all as of 6/30) (akshare cross-check). "Global No. 1 in edge-storage modules" was found only in prospectus marketing; the verifiable Frost & Sullivan caliber is "the world's only independent storage-solutions provider with wafer-level packaging and testing capability" and "global No. 2 in embedded storage."
  • Industry position: A leading independent module maker in edge storage.
  • Technical sentiment: STAR ±20%; the interim dividend of RMB 4.24 per 10 shares is rare for a cyclical name, showing management's confidence in cash flow.
  • Final call: More elastic than Longsys and riskier than Longsys — watch closely; once storage sentiment ebbs, the triple-peak structure amplifies the drawdown.

57 TFC Optical 天孚通信300394Optical comms · No. 7 overall · watch closely (B+/61) · ChiNext ±20%

  • Related news: Two straight real gains in optical communications (components move first: AAOI's +7.71% Friday is the small-cap component weathervane); CPO / optical engines and MPO connectors are positioned for the 1.6T generation (Caixin Weekly).
  • Bullish logic: A platform-type optical-components supplier benefiting from the rising component value in the 800G → 1.6T transition; not a direct one-to-one comp with any single company.
  • Industry stage / fundamentals: H1 revenue RMB 2.83 billion, +15.1%; net profit attributable to parent RMB 1.20 billion, +33.9%; gross margin 60.9%; operating cash flow RMB 1.00 billion; debt ratio 17.6% (akshare cross-check) — growth clearly below Innolight / Eoptolink, yet the most expensive valuation: PE (TTM) ~122.5x (9/30 close of RMB 260.77).
  • Technical sentiment: ChiNext ±20%; pulled back before the holiday, endorsed by two overseas gains.
  • Final call: Good quality, poor odds — watch closely; suited to buying pullbacks, not to chasing the gap-up on overseas real gains.

58 ACM Shanghai 盛美上海688082Semiconductor equipment · No. 8 overall · watch closely (B+/59) · STAR ±20%

  • Related news: Backlog RMB 17.073 billion, +88.2% YoY (announced the evening of 9/30, as of 9/29; the company notes it is unaudited, announcement PDF).
  • Bullish logic: Orders → revenue conversion over 12-18 months; domestic No. 1 in cleaning-equipment share (60.5% among domestic makers); electroplating as the second curve.
  • Fundamental verification: H1 revenue RMB 3.72 billion, +13.9%; net profit attributable to parent RMB 990 million, +42.1%, but ex-non-recurring profit RMB 570 million, -15.31% YoY — the headline net-profit surge is mainly government subsidies and other non-recurring items; H1 operating cash flow of only RMB 90 million; PE (TTM) 84.5x (akshare + Tencent Quotes cross-check). A "surging 50%" headline misleads — you must read it on the ex-non-recurring caliber.
  • Technical sentiment: STAR ±20%; announcement-grade orders catalyst — the most recognizable equipment name.
  • Final call: The orders are real, the earnings quality is hollow — watch closely; verification points = the pace of order-to-revenue conversion and when ex-non-recurring growth turns positive.

59 COSCO Shipping Energy 中远海能600026Oil & gas / tankers · No. 9 overall · watch closely (B+/57) · main board ±10%

  • Related news: Weekend Red Sea escalation (106 Saudi airstrikes in 24 hours, a tanker exploding south of Al-Mokha, CLS.cn Telegraph); Brent opened Monday +1% at 103.3; on 9/27 the Strait of Hormuz saw just 1 transit vs a baseline of 85 ships/day (Reuters).
  • Bullish logic: The core driver is the effective capacity lost to blockades → freight-rate risk premium: TD3C equivalent time-charter rates broke USD 1 million/day in mid-September (1.099 million on 9/15, 1.2125 million on 9/17, +425% vs pre-conflict; Q2 average USD 427,000/day, +1008% YoY); if rates hold at the plateau, high QoQ growth in Q3 is a high-probability event (an inference — the company has not disclosed it); note that it earns freight rates, not oil prices, so the correlation with the G7 releases pressuring oil is weak. No public rate prints since October (rates eased ahead of the holiday on de-escalation hopes and heated up again over the weekend) — to be verified.
  • Fundamental verification: H1 revenue RMB 15.15 billion, +30.0%; net profit attributable to parent RMB 4.54 billion, +143.2% (media figure +141% — the report recomputation prevails); foreign-trade tanker gross profit RMB 4.67 billion, +262.4% (akshare + interim-report cross-check); the world's largest oil-tanker fleet (long-standing broker caliber).
  • Technical sentiment: Main board ±10%; tanker rates eased ahead of the holiday on de-escalation hopes and heated up again with weekend events — an event-driven rhythm.
  • Final call: A watch-closely two-way branch; verification points = attack frequency and negotiation progress over 10/5-10/7 — any ceasefire rumor is the take-profit exit signal.

510 Giantec Semiconductor 聚辰股份688123Storage · No. 10 overall · watch closely (B/53) · STAR ±20%

  • Related news: Q4 DRAM contract-price forecasts raised (forecast caliber); DDR4 discontinued by makers, DDR5 becoming the mainstream for servers / high-end PCs (OFweek), with SPD / EEPROM benefiting from the penetration.
  • Bullish logic: DDR5 SPD global share above 40% (company HK prospectus caliber) — every DDR5 stick ships with an SPD, a pure "volume" logic.
  • Fundamental verification: H1 revenue RMB 600 million, just +4.7%; net profit attributable to parent RMB 530 million, +156.1%, but akshare income-statement cross-check shows fair-value-change gains of about RMB 475 million and investment income of about RMB 4 million — one-off items contributed the vast majority of profit; on an ex-non-recurring basis, core profit is only on the order of RMB 100 million; gross margin 51.5%, down YoY (60.3% in the prior-year period). The big profit surge shows a clear temperature gap with the "DDR5 explosion" narrative — Issue 2's score did not reflect this enough and it is downgraded this issue.
  • Industry position: A DDR5 SPD leader (prospectus caliber), EEPROM global No. 2 (17.1%, Web-Feet Research).
  • Technical sentiment: STAR ±20%; small-cap elasticity; pulled back with the sector on 9/30.
  • Final call: Watch closely; the logic holds but earnings have not delivered — add weight only after post-interim-report data verification.

6. Pass list

Code Name Concept Why it's associated Pass reason Keep watching?
301486 Zhishang Technology 致尚科技 Optical comms / MPO USD 500 million MOU + two straight overseas gains TTM loss, ex-non-recurring profit of just RMB 5.24 million, PB 9.5x; an MOU is not orders — fundamentals can't catch the sentiment Yes (watch whether 10/8 volumes without blowing up)
300475 Shannon Xinchuang 香农芯创 Memory distribution SK Hynix distribution benefiting from price hikes Thin distribution margins; less profit elasticity than modules; first in line for Friday's US sentiment transmission Yes
001309 Demingli 德明利 Memory modules Module price-hike elasticity Second tier, fundamentals weaker than Longsys / BIWIN; large prior gains Yes
300223 Ingenic 北京君正 Automotive memory Niche-memory follow-through No new announcements; muted auto demand; second-tier catch-up profile Yes
603501 Will Semiconductor 韦尔股份 Huawei chain / CIS Mate90 shortage + historical supply No BOM evidence; media named SmartSens 思特威 for the main camera CIS; H1 mobile CIS revenue -31%, net profit attributable to parent -39.9% Yes (watch official scorecards and teardowns)
688249 Nexchip 晶合集成 Semiconductor asset consolidation Photomask asset injection Asset injection ≠ new orders; thin profitability Yes
600938 CNOOC 中国海油 Oil & gas Brent at 103 G7 release of 100 million barrels directly pressures upstream sentiment; oil is two-way; dividend vs elasticity tug Yes (oil-linked position only)
688048 Everbright Photonics 长光华芯 Optical chips Chairman's remarks + overseas real gains Soft news; the chairman himself flagged "price cuts not ruled out in the long run"; unverified in H1 Yes
300364 ChineseAll 中文在线 AI applications Private placement into AI Placement dilution; AI monetization unproven No
300750 CATL 宁德时代 Lithium battery Employee stock plan + 10/20 Q3 review No new holiday catalysts; weak sector sentiment; the 158.42 transfer price is only a reference anchor Yes (around 10/20)
600418 JAC Motors 江淮汽车 Huawei / Stellantis rumor Unusual-movement announcement confirms talks Talks ≠ orders; high position after 3 limit-ups in 6 days; weak commercial-vehicle fundamentals Yes (watch for announcement follow-through)
600673 HEC Technology 东阳光 Shareholder increase Increase of up to RMB 1.2 billion H1 net profit attributable to parent -36.5%, debt ratio 71.3%, ~40% pledged; the increase ceiling is only 1.31% of market cap Yes
688522 Naruida 纳睿雷达 Cross-over into optical comms Acquiring 51% of Xintai Communications Cross-over M&A integration risk; no AI-compute accumulation in the main business; small scale No
002594 BYD 比亚迪 Auto chain Record September sales Cumulative -3.94% for January-September; the price war continues; monthly data is no surprise; H1 net profit attributable to parent -20.5% Yes (Q3 report)
— p-nitrotoluene concept Anti-dumping MOFCOM investigation The applicants are non-listed entities; no direct A-share capacity confirmation; the mapping chain is too long No
— National Day holiday films Holiday box office Holiday season Day-one box office at a 13-year low — the data is negative; not a direction worth attention No

7. Intra-branch ranking

Optical communications / optical modules (Branch No. 1 this issue)

Rank Stock Board Role Benefit directness Fundamental support Trading recognizability Conclusion
1 Zhongji Innolight 中际旭创 (300308) ChiNext ±20% Global leader / heavyweight High (direct orders) H1 +242%, global No. 1 Highest (capacity + recognizability) Hardest evidence — priority deep-dive
2 Eoptolink 新易盛 (300502) ChiNext ±20% One of the duopoly High (direct orders) H1 +91%, gross margin above Innolight High (more elastic) Best quality-to-valuation match
3 TFC Optical 天孚通信 (300394) ChiNext ±20% Component platform / niche leader Medium-high H1 +34%, PE 122x Medium (high-valuation drag) Watch closely — buy pullbacks
4 Zhishang Technology 致尚科技 (301486) ChiNext ±20% Elasticity play Medium (MOU) TTM loss High (small-cap sentiment) Watch only
5 Everbright Photonics 长光华芯 (688048) STAR ±20% Catch-up (optical chips) Medium (soft news) Unverified in H1 Medium Watch only
6 Naruida 纳睿雷达 (688522) STAR ±20% Second tier (cross-over) Low None Low Pass

Follow-on relationship: on overseas real-gain days, Innolight / Eoptolink set the direction, TFC follows with components, Zhishang / Everbright supply the elasticity, and Naruida is a pure follower. Hardest = Zhongji Innolight; most recognizable = Zhongji Innolight (Eoptolink is the most elastic under capacity constraints); Pass = Naruida; Zhishang = watch only.

Storage supercycle (Branch No. 2 this issue)

Rank Stock Board Role Benefit directness Fundamental support Trading recognizability Conclusion
1 GigaDevice 兆易创新 (603986) Main board ±10% Niche-design leader Medium-high (follow-through) H1 +1091%, best cash flow in the chain High Smallest sentiment shock — priority deep-dive
2 Montage Technology 澜起科技 (688008) STAR ±20% Global No. 1 in interfaces (picks-and-shovels) High (volume logic) H1 +72%, gross margin 65.3% High White-horse allocation, Korean raid hanging
3 Longsys 江波龙 (301308) ChiNext ±20% Module leader High (inventory revaluation) H1 net profit +71529%, operating cash flow -RMB 3.15 billion High High beta — watch closely
4 BIWIN Storage 佰维存储 (688525) STAR ±20% Modules / edge High (inventory revaluation) Turnaround of RMB 7.17 billion, triple-peak signal Medium-high More elastic than Longsys, riskier too
5 Giantec Semiconductor 聚辰股份 (688123) STAR ±20% SPD niche Medium Core profit on the order of RMB 100 million — temperature gap Medium Watch closely — await earnings verification
6 Shannon Xinchuang 香农芯创 (300475) ChiNext ±20% Distribution Medium Thin margins Medium Watch only
7 Demingli 德明利 (001309) Main board ±10% Second-tier elasticity High Weaker than the leaders Medium Watch only
8 Ingenic 北京君正 (300223) ChiNext ±20% Second-tier catch-up Medium No new announcements Low Pass

10/8 branch call order: first watch how Korean stocks (SK Hynix / Samsung) open at 9:00, then the A-share call auction; GigaDevice (design / niche) is least infected by Friday's US NAND/HDD sentiment, while the module duopoly is the most elastic but also carries the biggest triple-peak drawdowns. Pass = Ingenic; Demingli = watch only.

Oil & gas / tanker shipping (Branch No. 3 this issue): Hardest = COSCO Shipping Energy (600026 — direct rate elasticity); most recognizable = COSCO Shipping Energy; defensive alternative = China Merchants Energy Shipping (601872 — LTA + dividend profile, low elasticity); linked watch = CNOOC (600938 — earns oil prices but directly suppressed by G7 releases). A ceasefire rumor = the profit-taking signal for the whole branch.


8. Opening verification signals for the first reopening day (10/8)

Auction signals: ① Gap-up magnitude for the optical-module chain (Innolight / Eoptolink / TFC) — against two straight real gains, a 3-6% gap-up is the reasonable range; be wary of profit-taking above an 8% gap-up; ② if the storage chain (GigaDevice / Longsys / BIWIN) opens lower on inertia from Friday's US sentiment but recovers within 30 minutes, that is the best "mispricing repair" confirmation; ③ one-word boards and sealed order books (limit-ups sealed from the open — the so-called "20cm" one-word boards — are common in overseas-real-gain branches; mind the ChiNext / STAR ±20% caliber, and don't mistake +12% for limit-up).

Sector signals: ① optical communications: 3 or more limit-ups before 10:00 with the heavyweight (Innolight) holding volume without blowing up = main line confirmed; ② storage: watch the 9:00 Korean open and its linkage with A-shares; ③ tankers: watch whether weekend events keep fermenting (re-check every trading day over 10/5-10/7); ④ index level: FTSE A50 futures (previous settlement 14,022) + Hong Kong's 10/5-10/7 moves (Stock Connect absent — sentiment preview only).

Stock signals: For the top 5 names, absorption (gap-up without filling the gap), large net inflows, and heavyweight-plus-ladder rising together are strong; a single gap-up (one lone name) is weak.

Risk signals (any one triggers a position cut): ① optical communications turns lower on the remaining US trading days (the two real gains falsified); ② long-end Treasuries make a new high (30Y above 5.70%) triggering a synchronized global growth de-rating; ③ US–Iran ceasefire / Strait of Hormuz reopening rumors (the tanker logic reverses); ④ Hong Kong keeps plunging over 10/5-10/7 (a reopening discount priced by overseas capital); ⑤ earnings blowups among the dense Q3 reporting batch (134 names from 10/8).

Must-do homework for the rest of the holiday (every evening, 10/5-10/7): re-check the US optical-communications / storage sectors → update this list's strength ranking; watch US–Iran negotiations and Red Sea attack frequency; watch Mate90 official scorecards; final version on the evening of 10/7.


9. Final recommendation

① The 5 most worth watching this issue (for the 10/8 reopening; selected by branch diversification: the model's top 4 + No. 9 COSCO Shipping Energy manually added to cover Branch 3; the model's No. 5-8 (Longsys / BIWIN / TFC / ACM) move down accordingly and are all watch closely)

Rank Stock Branch Reason Biggest risk Day-one reopening check
1 Zhongji Innolight 中际旭创 (300308, ChiNext) Optical comms The most direct mapping of the holiday's two straight sector-wide real gains; H1 +242% with verifiable orders Operating cash flow -44%; Treasuries at high levels press valuations Gap-up magnitude and absorption at the call auction; whether US stocks keep rising
2 GigaDevice 兆易创新 (603986, main board) Storage Smallest hit from Friday's US sentiment (niche DRAM), Q2 gross margin 66.6%, best cash flow in the chain Inertia in US storage sentiment; cycle reversal The 9:00 Korean open; whether A-shares recover after a lower open
3 Eoptolink 新易盛 (300502, ChiNext) Optical comms Gross margin above Innolight, Q2 QoQ +70.8%, GB300 1.6T second source — best quality-to-valuation match North American customer concentration Same as Innolight
4 Montage Technology 澜起科技 (688008, STAR) Storage / interfaces The "volume and structure" logic gains from volume, not price hikes — the most solid quality The Korean antitrust raid hanging overhead; 80x PE Raid developments; server DRAM contract-price landing
5 COSCO Shipping Energy 中远海能 (600026, main board) Oil & gas / tankers Blockade → rate plateau (TD3C broke USD 1 million/day in mid-September); high QoQ growth in Q3 is a high-probability event Two-way branch: a ceasefire means an immediate pullback Red Sea attack frequency and negotiation news over 10/5-10/7

② The 3 strongest branches this issue

Rank Branch Core catalyst Durability Representative stocks
1 Optical comms / optical modules Two straight sector-wide real gains in US stocks (Coherent +10%/+5.59% over two days) Quarter-level (cloud-vendor capex) Zhongji Innolight (300308), Eoptolink (300502), TFC (300394)
2 Storage supercycle Q4 contract-price forecasts raised across the board + Micron's guidance of USD 61.5 billion massively above expectations (both forecasts / guidance) Multi-year (2027-2028 maker lock-ins) GigaDevice (603986), Montage (688008), Longsys (301308)
3 Oil & gas / tanker shipping Weekend Red Sea escalation + TD3C breaking USD 1 million/day Event-driven (two-way) COSCO Shipping Energy (600026), CMES (601872)

③ Directions not to chase this issue: film & cinema (day-one National Day holiday box office at a 13-year low — a data negative); the p-nitrotoluene anti-dumping concept (no direct A-share capacity confirmation); Huawei-chain rumor stocks (JAC Motors high after 3 limit-ups in 6 days + "talks ≠ orders"; Will Semiconductor with no BOM evidence and H1 mobile CIS revenue -31%); lithium batteries / solid state (no holiday catalysts, and a cooling announcement on the evening of 9/30); any diesel-petrochemical chain directly hurt by the "G7 releases."

④ Final one-line judgment: The holiday enters its second half; the most dangerous macro hurdle (nonfarm payrolls) has made a soft landing (October rate-hike expectations collapsed to 22%), and the main lines completed the strength swap to "optical communications > storage" — for the 10/8 reopening, structure around "optical communications as the main attack, storage bought on dips as Korean names set the tone, tankers event-driven," but long-end Treasuries at 5.3-5.6% and Hong Kong's 2.6% plunge on 10/2 remind us: profit-taking at the reopening's gap-up will not be small — position size matters more than direction.


⚠️ Risk disclaimer: This list is only a pre-market information roundup and watchlist, and does not constitute investment advice. A-share volatility risk is extremely high; automatically generated content may carry information-timeliness gaps or industry-chain mapping errors, and must not be used directly as a trading basis.

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