Taiex Jumps 4.9% in a Day: What the AI Stock Rebound Means for Asia

4.9% in a single session. That is how far Taiwan's Taiex index climbed after a week of sell-offs in the technology sector. One stock did most of the heavy lifting: shares of TSMC, the world's largest contract chipmaker, gained 4.7%. Tokyo's Nikkei closed up 2.3%. The figures come from AP's report on trading on 9 November 2026.

Asian markets recovered part of their losses after U.S. AI stocks led the way. The push came on Friday, when Nvidia rose 2.8% and pulled the S&P 500 out of a weekly slump. On Monday, futures pointed to a modest continuation: +0.3% for the S&P 500 and +0.6% for the Dow.

Call it a rebound, but not yet a reversal. The rally is narrow and rests on a handful of companies in the data-center supply chain.

Quick Answer

• Taiwan's Taiex rose 4.9%, led by TSMC, which gained 4.7%.
• Japan's Nikkei closed 2.3% higher.
• South Korea's Kospi fell 0.8%, even though tech stocks there edged up.
• Brent crude fell 1.8% to $96.60 a barrel. U.S. WTI dropped 1.3% to $89.67.
• The dollar weakened against the yen, while the euro firmed slightly.

Key Facts

• Trading date: 9 November 2026, per AP data.
• The S&P 500 bounced on Friday after a week of declines. The main driver was Nvidia (+2.8%).
• On Monday, S&P 500 futures traded 0.3% higher and Dow Jones futures 0.6% higher.
• Hong Kong and Shanghai posted token gains. Australia's market was almost flat.
• Kospi was the regional exception, down 0.8%.
• Other outlets reported even steeper moves: FXStreet put the Taiex gain at about 5.3%, to around 41,800 points, and Euronext's live wire noted Taiwan up more than 6% and the Nikkei up about 3.5%. Figures vary by source and closing time, so the AP numbers above are the baseline used in this article.
• The sell-off that preceded the bounce was tied to fears that U.S. midterm results could hinder AI data-center expansion, along with concerns over AI profitability, according to The Seattle Times and FXStreet.
• Oil is getting cheaper but remains expensive: $96.60 for Brent and $89.67 for WTI.

The most interesting number of the day comes from Seoul. The logic of "AI stocks are rising, so all Asian tech markets rise" did not hold this time. South Korea's market also depends heavily on semiconductors, yet it closed lower: tech shares there rose too little to offset selling in other sectors. The takeaway is simple. Money is not flowing into "Asia" or into "tech" in general, but toward specific suppliers of data-center infrastructure, and TSMC sits at the top of that list.

That explains the concentration. Almost five percent of the Taiex's daily gain came largely from a single company with an enormous weight in the index. Anyone buying the index in expectation of broad market growth is, in practice, making a bet on TSMC's order book. That is fine, as long as you understand what you are actually buying.

The second figure worth watching more closely than the Taiex is oil. Brent near $96.60 means expensive energy for every importer in the region: Japan, Korea, Thailand. The 1.8% daily drop eases the picture but does not change it. While Brent stays above $90, inflationary pressure in Asia does not go away, no matter how much chipmaker shares rally. For those who hold only dollar assets and do not pay for energy in local currency, this argument is almost irrelevant.

The currency backdrop completes the picture. The dollar weakened against the yen and the euro gained slightly. For Asian markets, a weaker dollar usually means capital inflows. How long that lasts is hard to say: the market still reacts to every batch of macro data and to any signal about AI spending.

FAQ

Why did Taiwan's market rise on 9 November 2026?

Investors returned to AI stocks after a week of sell-offs. The Taiex gained 4.9%, with TSMC's 4.7% rise making the main contribution.

What happened with Nvidia?

On Friday, Nvidia shares rose 2.8%. That helped the S&P 500 rebound after a week of declines and set the tone for Monday's Asian trading.

Why did Kospi fall if tech stocks were rising?

The gain in Korean tech shares was small and did not offset declines in other sectors. The net result: down 0.8%.

How much does oil cost right now?

At the time of trading, Brent was $96.60 a barrel (-1.8%) and U.S. WTI was $89.67 (-1.3%).

Is this the end of the correction in AI stocks?

One session is not enough to say. Futures pointed only to modest gains (+0.3% for the S&P 500), and the market remains dependent on earnings and inflation data.

How did currencies move?

The dollar weakened against the Japanese yen, and the euro strengthened slightly.

Why does this matter for Phuket property buyers?

For a Phuket buyer, the stock market euphoria matters less than oil near $96 and the dollar's direction. Energy affects the cost of flights and tourist flows, while the exchange rate determines what the baht costs a foreign buyer. Bangkok Post reports that Phuket's property market is shifting from a tourism and holiday-home focus to a self-sustaining, resident-driven market, supported by infrastructure upgrades and growing healthcare, education and retail facilities. That is a more durable source of demand than a one-day equity bounce.

What should buyers with a near-term purchase do?

If a deal is planned in the coming months, fix your budget in the currency in which you hold your funds, and do not tie your purchase timing to a single rebound in the equity market.

Source: The Seattle Times

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