Taiwan Steps In to Steady Its Stock Market After a 12% Weekly Plunge
Taiwan’s government stepped in to support its stock market on November 6, 2026, after the main index, the Taiex, fell 12.19% in a single week. The country’s National Financial Stabilization Fund was authorized to buy shares when it judges the market needs support, and regulators also tightened the rules on short selling from Monday, November 9.
What happened
The Taiex closed at 39,701.64 on Friday, November 6, down 1,873.08 points, or 4.51%, on the day. During the session it fell as far as 37,837.05, about 9% below the previous close, the largest intraday point drop on record.
For the week, the index lost 12.19%, its worst week since 2001, according to Bloomberg. It is now 20.55% below its high of 49,968.92, reached on October 6, although it is still about 37% higher than at the end of last year.
The fall was driven by worries about the AI boom. After Democrats won both chambers of Congress in the US midterm elections on November 3, investors feared new curbs on data center investment. Chip shares fell hard, and Taiwan’s market is dominated by chip maker TSMC, which makes up more than 40% of the market’s value. TSMC hit its 10% daily limit during Friday’s session and closed 4.69% lower.
Foreign investors sold a record NT$994.3 billion, about $30.3 billion, of Taiwan shares in October, and sold a further NT$524.4 billion in the first week of November.
After trading ended on Friday, the stabilization fund’s committee met and authorized its executive secretary to deploy money as market conditions require. The fund can use up to NT$500 billion, about $15.26 billion. This is its 10th intervention since it was set up in 2000. The fund did not name an amount it will spend or a timetable.
Taiwan’s Financial Supervisory Commission also announced curbs on short selling, effective from Monday, November 9. Intraday orders to sell borrowed shares will be capped at 3% of a stock’s average daily volume, down from 30%, and the minimum margin on short sales rises to 130% from 90%. The regulator also urged listed companies to consider buying back their own shares.
Why it matters for beginners
A stabilization fund is a government backstop. When a market falls fast on panic rather than on the health of its companies, the fund buys shares to calm selling and restore confidence. It does not guarantee that prices will rise.
Taiwan matters to beginners even if they never buy a Taiwan share, because it makes most of the world’s advanced chips. When its market falls on AI worries, it shows how one theme, AI spending, can move markets around the world in the same week.
The fund’s last intervention, from April 2025 to January 2026, ended with a profit of NT$9.93 billion on NT$12.25 billion invested, according to Focus Taiwan. That shows these funds can make money when markets recover, but it is no promise for this time. To understand the risk behind a sharp fall, read our guide to what risk in investing means in simple terms.
Sharp falls are normal in investing, and a single bad week does not decide what happens next. What matters is whether the selling continues and whether the reasons behind it change.
What to watch next
Monday, November 9, when the short selling curbs take effect and traders watch for signs that the fund has started buying.
Whether foreign investors keep selling or slow down. October’s record selling was the main pressure on the market.
US chip shares and any news on data center rules, since Taiwan’s market moves closely with the US semiconductor index.
Taiwan’s central bank publishes November foreign exchange reserves on December 4.
Frequently asked questions
What is the Taiex?
It is Taiwan’s benchmark stock index, covering the shares listed on the Taiwan Stock Exchange.
What is a stabilization fund?
It is a government fund that buys shares in a falling market to steady prices and restore confidence. Taiwan’s fund can use up to NT$500 billion.
What is short selling?
It is selling borrowed shares in the hope of buying them back cheaper later. Capping it limits one source of downward pressure on prices.
Does the fund’s move mean the market will rise?
No. It is a support measure, not a guarantee. Markets can keep falling if selling continues.
Sources
The Edge, “Taiwan Authorises Its Stabilization Fund to Step In After a 12.19% Weekly Taiex Slide”, November 7, 2026: https://edgeconsultancykw.com/taiwan-national-financial-stabilization-fund-authorised-taiex-slide-november-2026/
Asia Daily, “Taiwan Authorizes Tenth Stabilization Fund Intervention”, November 7, 2026: https://asiadaily.org/news/17887/
Focus Taiwan, “Stabilization fund ready for market intervention after Taiex’s plunge”, November 6, 2026, as reported by The Edge and Asia Daily.
This article is for general information and education only. It is not legal or financial advice.
