Taiwan's TAIEX closed at 40,039.18 on July 29, down 1,564.18 points (-3.76%) on turnover of about NT$1.08 trillion — its 7th-largest point drop on record, after falling 2,030 points the prior session. According to Taiwan's Financial Supervisory Commission (FSC), cited by CNA and Liberty Times, the margin account maintenance ratio stood at 165.50% as of July 28, above the 130% minimum call threshold.
How large was the July 29 drop, and where does it rank historically?
The Taiwan Capitalization Weighted Stock Index (TAIEX) closed at 40,039.18 points on July 29, 2026, down 1,564.18 points, a decline of 3.76%, on turnover of roughly NT$1.08 trillion (NT$1,083.57 billion), according to Liberty Times and Central News Agency (CNA), both citing the same closing figures. CNA further reported that the 1,564.18-point drop marked the 7th-largest single-day point decline in TAIEX closing history.
The sell-off followed an even larger drop the previous session: Liberty Times reported the index fell 2,030 points on July 28, which it described as the third-worst one-day point loss in the market's history. Combined, Liberty Times noted the index lost nearly 4,000 points over the two trading days.
What does the 165.5% margin maintenance ratio signal?
Both Liberty Times and CNA reported that the FSC, using data as of July 28, put the integrated margin account maintenance ratio at 165.50% — above the 130% minimum threshold at which brokerages issue margin calls. Both outlets carried the identical figure and threshold, sourced from the FSC.
What was the securities lending share of market turnover?
According to the FSC data reported by Liberty Times, short sales from securities lending accounted for 3.76% of market turnover as of July 28.
What are the market's P/E ratio and dividend yield levels?
FSC data cited by both Liberty Times and CNA showed the TWSE centralized market's price-to-earnings ratio at approximately 31.78 times as of June 30, 2026, with a cash dividend yield of 1.56% (1.59% including stock dividends).
How did other Asian markets perform over the same period?
Liberty Times reported that, as of 13:30 on July 29, regional markets showed mixed moves: Singapore rose 0.71%, Shanghai gained 0.31%, and Hong Kong climbed 1.23%, while Japan fell 1.72% and South Korea dropped 7.46% — a steeper same-day decline than Taiwan's 3.76%.
How did listed companies' cumulative revenue perform?
FSC data reported by both Liberty Times and CNA showed that domestic listed and OTC companies posted cumulative revenue of approximately NT$30.49 trillion through the end of June 2026, up 35.96% year-on-year.
Market snapshot (FSC data via Liberty Times and CNA)
| Metric | Value | Date |
|---|
| TAIEX close | 40,039.18 | Jul 29, 2026 |
| Point change | -1,564.18 (-3.76%) | Jul 29, 2026 |
| Turnover | ~NT$1.084 trillion | Jul 29, 2026 |
| Prior-day point change | -2,030 | Jul 28, 2026 |
| Margin maintenance ratio | 165.50% | Jul 28, 2026 |
| Broker margin call threshold | 130% | — |
| Securities lending share of turnover | 3.76% | Jul 28, 2026 |
| P/E ratio (centralized market) | 31.78x | Jun 30, 2026 |
| Cash dividend yield | 1.56% (1.59% incl. stock dividends) | Jun 30, 2026 |
| Cumulative revenue, listed/OTC companies | NT$30.49 trillion (+35.96% YoY) | Jun 30, 2026 |
Asian markets, same-day comparison (as of 13:30, Jul 29, 2026)
| Market | Change |
|---|
| Taiwan (TAIEX) | -3.76% |
| Singapore | +0.71% |
| Shanghai | +0.31% |
| Hong Kong | +1.23% |
| Japan | -1.72% |
| South Korea | -7.46% |
What this means
The figures reported by the FSC sit alongside, rather than fully explain, the size of the drop. A 165.50% margin maintenance ratio — well above the 130% call threshold — and a securities lending share of just 3.76% of turnover do not, on their own, point to forced margin liquidation or heavy short-selling as reported by Liberty Times and CNA. At the same time, the same FSC data shows listed and OTC companies posting 35.96% year-on-year revenue growth to NT$30.49 trillion through June, alongside a 31.78x P/E ratio, figures that predate the July 28-29 sell-off. Regionally, South Korea's 7.46% same-day decline was steeper than Taiwan's 3.76%, while Singapore, Shanghai, and Hong Kong posted gains over the same window, per Liberty Times.