Taipei Ticker台北行情

AI Stock Rout: SOX Plunges 12.25% and the Dow Sheds 1,833 Points; TAIEX Night Futures Sink 2,946 Points as TSMC's ADR Falls 10.78%

Friday, November 6, 2026 Morning Brief Data: US close Nov 5; Taiwan section updates after the 1:30 PM Taipei close, around 4:00 PM Taipei time

Today's Takeaways

Morning Brief US close Nov 5 · Taiwan pre-market

AI sell-off, night futures slump

US stocks fell across the board on Nov 5. Investors reassessed what Democratic control of Congress means and worried that AI data center construction will slow, selling tech stocks heavily. The Dow fell 1,833.06 points (−3.44%) to 51,523.06, giving back all of the previous day's 1,569-point post-election rally; the S&P 500 fell 4.36% and the Nasdaq 5.52%, the worst day for all three indexes since April 2025. The Nasdaq is about 11.9% below its October high, in a "correction" of more than 10%.

Chip stocks fell the most: the PHLX Semiconductor Index lost 12.25%, its second-biggest one-day drop on record according to Reuters. SanDisk fell 22.26%, Micron and AMD each lost more than 17%, and Nvidia fell 9.26%, turning negative for the year; TSMC's ADR fell 10.78% to US$353.10. The VIX jumped 69.66% to 28.18.

Money moved into Treasuries: the 10-year yield fell 6 bp to 4.84% and the 2-year 12 bp to 4.46%. Oil rebounded after the previous day's 8% plunge, with WTI up 3.72% to $91.40 a barrel. The Bank of England raised rates by a quarter point to 4%.

TAIEX futures closed the night session at 38,936, down 2,946 points (−7.03%), about 2,639 points below the TAIEX's Nov 5 close; the premium of TSMC's converted ADR price narrowed from 14.64% to 4.16%. The US October jobs report comes today at 8:30 AM ET; the Taiwan close updates around 4:00 PM Taipei time.

Key Numbers

United States Close, Nov 5

MarketCloseChangeNote
S&P 5007,353.73 pts−4.36%Down 334.89 points, its biggest one-day drop since April 2025, wiping out the previous day's gain and closing below the Nov 3 close. According to Reuters, all 11 sectors fell, with tech down 7.3%; Tesla fell about 10.8% and Meta about 4%. Investors worried that a Democratic-led Congress and new policies in states such as Texas will slow AI data center construction, and the AI stocks that had led the market higher became the center of the selling. The index is about 5.95% below its Oct 6 record of 7,818.93.
Nasdaq Composite24,315.00 pts−5.52%Down 1,421.51 points and about 11.9% below its Oct 6 high of 27,599.79, a "correction" of more than 10%. The QQQ ETF, which tracks the Nasdaq-100, fell 6.49%. According to CNBC, the Magnificent Seven lost more than $1 trillion in combined market value in one day; Amazon, which had surged the day before, fell 2.19% and Apple about 1.5%, less than the chip stocks.
Dow Industrials51,523.06 pts−3.44%Down 1,833.06 points, more than the previous day's 1,569.40-point gain, erasing the entire post-election rally. The Dow is weighted toward traditional industries and large caps with less chip exposure, so it fell less than the Nasdaq; but the selling spread to every sector, and none rose. It is about 5.20% below its Aug 5 record of 54,349.12.
PHLX Semiconductor (SOX)9,011.14 pts−12.25%Down 1,257.51 points, its second-biggest one-day drop on record according to Reuters; over two days it has fallen about 15.0% from 10,600.40 on Nov 3. Memory and AI chips fell the most: SanDisk −22.26%, Micron −17.46%, AMD −17.26%, Marvell −16.43%, Arm −13.08%, Broadcom −10.43%, Intel −10.33%, Qualcomm −9.49%. Nvidia fell 9.26% to US$181.60, below its end-2025 close of US$186.50, turning negative for the year. TSMC's ADR fell 10.78%. Per Yahoo Finance data, the SOX is about 38.4% below its one-year high of 14,634.72 set on Jun 22.
VIX28.18 pts+69.66%Measures expected stock market volatility over the next 30 days. It rose 11.57 points in a day: it had just fallen from above 20 to 16.61 the day before, and now jumped back above 28, its highest level since late March according to CNBC, a sign of rapidly rising market anxiety.
10-year Treasury yield4.84%−6 bpPer the US Treasury, down from 4.90% to 4.84%; the 2-year fell 12 bp to 4.46%, with short-term yields falling more. Investors bought Treasuries for safety as stocks slumped and scaled back expectations of another Fed hike: according to CNBC, citing CME FedWatch, the odds of a December hike fell from 82.7% the day before to 70.1%. Third-quarter labor productivity, released the same day, rose at a 3.6% annual rate and unit labor costs fell 0.7%; according to CNBC, initial jobless claims were 189,000, down from 195,000 the week before.
WTI crudeUS$91.40/bbl+3.72%Per the Yahoo Finance front-month contract, up $3.28 from US$88.12 (the NYMEX settlement was US$90.52, up 2.72%, taken at a different time than the closing quote; the US$88.33 cited in yesterday's brief was an earlier quote). It rebounded after falling 8% the day before on hopes the Iran war could end sooner: according to Reuters, citing the UK Maritime Trade Operations (UKMTO), at least five vessels have reported incidents in the Gulf since Sunday, putting supply risk back in focus; US crude and gasoline inventories also fell last week. Brent closed at US$99.44/bbl, up 5.09%.
Gold (December futures)US$4,101.90/oz+0.71%Per Yahoo Finance, up $28.90 from US$4,073.00 (the US$4,072.30 cited in yesterday's brief was an earlier quote). With stocks slumping and Treasury yields falling, money moved into safe havens; the dollar index was nearly flat at 101.57, up 0.06%. Bitcoin fell about 6% along with other risk assets.

Taiwan pre-market TAIEX futures night session, TSMC ADR, Nov 5 close

MarketValueChangeNote
TAIEX futures, night session (November contract)38,936 pts−2,946 pts (−7.03%)The night session ran from 3:00 PM on Nov 5 to 5:00 AM today, Taipei time; the change is measured against the Nov 5 day-session close of 41,882. According to the Taiwan Futures Exchange report, it opened at 41,990 and reached a high of 42,298, then fell steadily after the US open to a low of 38,799, closing near the low and below 40,000. Volume was 89,296 contracts, about 30% more than the previous night's 66,939. The night close was about 2,639 points below the TAIEX's Nov 5 close of 41,574.72.
TSMC ADR, convertedNT$2,3334.16% premiumThe ADR closed at US$353.10, down 10.78% (from US$395.75), about 27.3% below its one-year high of US$485.80 on Oct 5. One ADR equals five ordinary shares; at the Yahoo Finance exchange rate of 33.04 (the NT dollar weakened past 33 per US dollar), that is about NT$2,333, 4.16% above the Nov 5 Taiwan close of NT$2,240. The ADR usually trades at a premium; the premium narrowed sharply from 14.64% the day before because the ADR fell 10.78% while the Taiwan shares fell only 0.88% on Nov 5.
TAIEX (Nov 5)41,574.72 pts−1,374.19 pts (−3.20%)After the SOX fell 3.13% and memory stocks slumped the night before, Taiwan followed the chip stocks lower and fell below 42,000; many memory, PCB, passive component and cooling stocks fell by the daily limit, while TSMC lost only 0.88%. Down six days in a row for about 5,461 points, it closed at its lowest since Jul 31, about 16.6% below the Oct 6 October high of 49,822.55. The TPEx index fell 6.41% to 321.47.
Foreign investors (Nov 5)−NT$102.46BA sixth straight day of net selling and a third straight day above NT$100B, mostly Taiwan ETFs and 0050. According to the latest TWSE figures, investment trusts bought for an 18th straight day (NT$22.59B), dealers sold NT$43.53B, and the three groups combined sold a net NT$123.39B (these differ from the trust figure of NT$22.53B and combined NT$123.46B cited in yesterday's afternoon edition; the latest TWSE figures take precedence).
Taiwan closes at 1:30 PM today; closing data and institutional flows will be updated around 4:00 PM Taipei time.
Before the open, see the TAIEX futures night session and TSMC ADR above.

Units: indexes in points; US prices in US dollars (US$); Taiwan prices and amounts in New Taiwan dollars (NT$); TAIEX futures volume in contracts.

Six Market Signals

TrendSharp drop

The Nasdaq is about 11.9% below its October high, in a correction, and the S&P 500 about 6% below; the SOX is about 38% below its one-year high. The TAIEX had already fallen six days in a row through Nov 5, about 16.6% below its October high, and night futures fell another 7.03%.

Money flowsRisk-off

Money left tech stocks for Treasuries and gold, and bitcoin fell about 6%. In Taiwan, foreign investors sold NT$102.46B on Nov 5, a sixth straight day of selling, while investment trusts bought for an 18th straight day.

Interest ratesYields fall

The 10-year Treasury yield fell 6 bp to 4.84% and the 2-year 12 bp to 4.46%; the market-implied odds of a December Fed hike fell from 82.7% to 70.1%. The Bank of England raised rates to 4%, its first hike since 2023.

ConcentrationChips hit hardest

Selling was concentrated in chips and AI: the SOX fell 12.25%, with memory, AI chip and networking chip stocks down the most, and AI cloud provider CoreWeave fell 9.83%. But this time all 11 S&P 500 sectors fell, not just tech.

GeopoliticsShipping risk

Markets still expect the US to move faster to end the Iran war, and Iran's foreign minister discussed diplomatic efforts with his Saudi and Qatari counterparts; but a string of vessel incidents in the Gulf helped oil rebound after the previous day's plunge.

InflationOil rebounds

WTI crude rebounded 3.72% to $91.40 a barrel and Brent rose 5.09% to $99.44. US unit labor costs fell 0.7% in the third quarter, so inflation pressure from wages is limited.

Taiwan in Focus

Taiwan closes at 1:30 PM today; closing data and institutional flows will be updated around 4:00 PM Taipei time.
Before the open, see the TAIEX futures night session and TSMC ADR above.

US and Global News

Chip stocks suffer the second-biggest drop on record; SOX falls 12.25%

The SOX had already fallen 3.13% the day before; on Nov 5 the selling turned into a broad rout. According to Reuters, the PHLX Semiconductor Index fell about 12% in a day, its second-biggest drop on record; according to CNBC, the iShares Semiconductor ETF fell more than 12%, its worst day since March 2020. Memory stocks fell the most, with SanDisk down 22.26% and Micron 17.46%; AI chip makers AMD and Marvell fell about 16% to 17%, and Nvidia fell 9.26%, turning negative for the year. The market's worry: if US data center construction slows, demand for AI chips and memory may grow more slowly than expected.

▼ Memory▼ AI chips▼ Networking chipsFoundry

Markets reassess the election; the Nasdaq falls into a correction

The day before, markets reacted positively to Democrats winning both chambers of Congress, expecting fewer policy changes; on Nov 5 the focus shifted to worries that Congress and states such as Texas could restrict data center construction. According to Reuters, public opposition to data centers is rising in some states Democrats won; according to CNBC, OpenAI repeated its pledge to pay the full cost of the power its data centers use. All three major indexes had their worst day since April 2025, Tesla fell about 10.8%, and the Magnificent Seven lost more than $1 trillion in combined market value in one day.

▼ AI data centers▼ Big tech▼ Electric vehicles

Oil rebounds, the UK hikes, and Treasury yields fall

WTI crude rebounded after the previous day's 8% drop, settling up 2.72% at $90.52 a barrel on NYMEX; vessels reported a string of incidents in the Gulf, and US crude inventories fell last week. The Bank of England raised rates by a quarter point, from 3.75% to 4%, with all nine committee members voting to hike and one favoring a half-point move. In the US, the Bureau of Labor Statistics reported third-quarter labor productivity growth of 3.6% and a 0.7% drop in unit labor costs; the stock slump also pushed Treasury yields lower, with the 2-year down 12 bp.

▲ Oil▼ AirlinesBanks

Qualcomm falls 9.49% after earnings; Lam Research announces a $25 billion buyback

Phone chip maker Qualcomm reported fiscal fourth-quarter results the day before, with handset chip revenue down 26%, and the stock fell 9.49% on Nov 5. After the close, chip equipment maker Lam Research announced a $25 billion share buyback, and its shares rose 4.62% after hours. Among other companies reporting after the close, Cloudflare (revenue up 39%) and Airbnb (revenue up 19%) both rose more than 10% after hours, while software company Atlassian and sports betting company DraftKings slumped, with DraftKings cutting its full-year profit forecast.

▼ Phone chips▲ Chip equipmentCloud software

▲▼ show the direction in which this news typically affects each industry; they do not mean stocks will necessarily move that way. Industries without an arrow face mixed effects.

The US–Taiwan Link: US Chip Stocks Slump — How Taiwan's Industries Are Connected

This US sell-off was concentrated in chips and AI, exactly the industries that carry the most weight in Taiwan's market. Memory stocks such as Micron and SanDisk share an industry cycle with Taiwan's Nanya Technology, Winbond and Macronix; AI chips from AMD, Nvidia, Marvell and Broadcom are largely made by TSMC, the AI servers that use them are mostly assembled in Taiwan, and Taiwanese companies supply much of the cooling, power, PCBs and substrates. US market views on the pace of data center construction relate directly to order expectations in these Taiwan industries.

TSMC's ADR fell 10.78%, and its converted premium narrowed from 14.64% to 4.16%; TAIEX night futures fell 7.03%, closing about 2,639 points below the TAIEX's Nov 5 close. Night futures reflect prices set by overnight traders; the actual move in Taiwan's cash market is set by the 1:30 PM Taipei close.

Other links: Qualcomm's falling handset chip revenue relates to Taiwan's foundry, packaging and testing companies and phone chip makers; Lam Research is a chip equipment maker, linked to equipment spending by Taiwan's chip fabs and to Taiwan's equipment parts supply chain. The oil rebound relates to product prices for Taiwan's petrochemical industry and fuel costs for airlines and shipping companies.

What's Next US Eastern Time

Fri Nov 6, 8:30 AMUS October jobs reportSeptember added only 29,000 jobs; according to CNBC, citing a Dow Jones survey, the forecast is for 59,000 jobs and an unemployment rate holding at 4.2%, which will shape views on a December Fed hike
Fri Nov 6, 10:00 AMUniversity of Michigan consumer sentiment (November preliminary)How consumer confidence and inflation expectations react after the stock slump
By Nov 10Taiwan October sales reportsListed companies report the prior month's revenue by the 10th, a check on whether AI supply chain orders are still growing
Tue Nov 10, 8:30 AMUS October Consumer Price Index (CPI)Oil was still high in October; CPI will shape views on whether the Fed hikes
Thu Nov 12Hon Hai third-quarter earnings callAI server shipments and outlook; the date is posted on Taiwan's Market Observation Post System
Wed Dec 9, 2:00 PMFOMC rate decisionMarkets are watching whether the Fed raises rates
This brief summarizes publicly available market data and news for informational purposes only. It is not investment advice and does not recommend buying or selling any security. Companies are mentioned only to illustrate industry trends. Closing figures may differ slightly between data sources.
Sources CNBC — Stock market today: Live updates, Nov. 5, 2026 (indexes, individual stocks, FedWatch, data centers, payrolls forecast) Stock Titan — The Stock Market Today Live, November 5, 2026 (chip stock closes, jobless claims, after-hours earnings) Reuters (via Investing.com) — Trading Day: A November 5 market bonfire (SOX second-biggest drop on record, sectors, Treasuries, bitcoin) investingLive — WTI crude oil settles at $90.52, up 2.72% (settlement, Gulf shipping incidents, inventories) US Treasury — Daily Treasury yield curve rates (Nov 5) US Bureau of Labor Statistics — Productivity and Costs, Third Quarter 2026, Preliminary Bank of England — Monetary Policy Summary, November 2026 SEC — Qualcomm fiscal fourth-quarter earnings release (Form 8-K) US Bureau of Labor Statistics — jobs report and CPI release schedule Yahoo Finance — US indexes, SOX, VIX, individual stocks, crude, gold futures, dollar index, TSMC ADR, NT dollar quotes and one-year highs Taiwan Futures Exchange — Daily futures market report (TAIEX futures night session open, high, low, close, volume) Anue (cnyes.com) — TAIEX futures front-month quote (night close cross-check) FinMind — TAIEX futures night close and volume (cross-check) Taiwan Stock Exchange — Daily market trading (TAIEX, Nov 5) Taiwan Stock Exchange — Trading value of the three institutional investor groups (Nov 5) Taipei Exchange — Daily trading value and TPEx index Market Observation Post System — Hon Hai third-quarter earnings call notice