TAIEX tumbled 6.5%
The TAIEX plunged 6.47 percent to close at 42,671.27 on July 17, 2026, its worst single-day drop in the evidence period and a steeper fall than any major regional peer. The session wiped out more than a tenth of the index's value from its 52-week high of 47,741.51 reached earlier this year, leaving it 85.62 percent above its 52-week low of 22,987.92.
The decline extended a deteriorating short-term trend. The benchmark has now fallen 5.92 percent over the past week and 6.85 percent over the past month, though it retains a substantial 47.33 percent gain since the start of 2026 and a 14.92 percent advance over three months. Technically, the TAIEX has slipped below its 50-day simple moving average of 44,340.02 but remains well above its 200-day average of 34,165.04, a pattern that typically indicates medium-term momentum weakening while longer-term trends stay intact.
Regional markets showed broad weakness but nothing approaching Taiwan's severity. South Korea's KOSPI fell 6.37 percent, nearly matching the TAIEX drop, while Japan's Nikkei declined 4.03 percent and China's Shanghai Composite shed 3.05 percent. Hong Kong's Hang Seng lost 1.78 percent. U.S. futures markets pointed lower with the S&P 500 down 1.01 percent, the Nasdaq off 1.4 percent and the Dow lower by 0.77 percent. European bourses were mixed, with the FTSE 100 eking out a 0.27 percent gain while the DAX, CAC 40 and Euro Stoxx 50 all declined. Only Indian equities bucked the trend, with the Sensex up 1.25 percent and the Nifty 50 rising 1.09 percent.
The evidence pack contains no fresh headlines from July 17 itself. The most recent Taiwan-specific coverage, from Taiwan News four days prior, cited a 1.42 percent drop attributed to geopolitical risk assessment and anticipation of TSMC outlook commentary. That narrative predates the current session's far larger move. No headlines in the pack explain the magnitude of Friday's selling.
What the data establishes is clear: an exceptionally sharp decline in Taiwanese equities that outpaced regional and global peers, with technical indicators showing short-term damage but long-term positioning still positive. What it does not establish is cause. Whether the selling reflected company-specific developments, macroeconomic shifts, positioning adjustments or other factors remains unconfirmed in the available record.
The numbers
- Level 42,671.27, -6.47% on the day (as of 2026-07-17)
- 1-week -5.92% · 1-month -6.85% · 3-month +14.92% · YTD +47.33%
- 52-week range 22,987.92 – 47,741.51, 10.6% below the high
- Trading below its 50-day average and above its 200-day average
Around the world (same session)
- S&P 500 -1.01%
- Nasdaq -1.40%
- Dow -0.77%
- FTSE 100 +0.27%
- DAX -0.34%
- CAC 40 -0.47%
- Euro Stoxx 50 -0.84%
- Nikkei -4.03%
- Hang Seng -1.78%
- Shanghai -3.05%
- KOSPI -6.37%
- ASX 200 -0.50%
- Sensex +1.25%
- Nifty 50 +1.09%
Recent headlines
- TAIEX drops 1.42% as investors assess geopolitical risks and upcoming TSMC outlook — Taiwan News (4d ago)
- Asia chip stocks rise after U.S.-Taiwan trade deal; Taiex and South Korea's Kospi hit fresh records — CNBC (184d ago)
- Taiwan Weighted Index surges nearly 1,630 points in a single session, gaining 3.78% — Crypto Briefing (37d ago)
- TAIEX edges higher as regional market sentiment weakens — Taiwan News (5d ago)
- Taiwan - TSEC Weighted Index - Top 10 Companies Total Market Cap and Share — MacroMicro (207d ago)
- TAIEX ends week lower as investors shift focus across tech sectors — Taiwan News (9d ago)
- Taiwan - TAIEX Shiller CAPE vs. TAIEX Index — MacroMicro (314d ago)
- TAIEX gives up early gains on Monday — Taiwan News (11d ago)
Sources
- TAIEX drops 1.42% as investors assess geopolitical risks and upcoming TSMC outlook — Taiwan News
- Asia chip stocks rise after U.S.-Taiwan trade deal; Taiex and South Korea's Kospi hit fresh records — CNBC
- Taiwan Weighted Index surges nearly 1,630 points in a single session, gaining 3.78% — Crypto Briefing
- TAIEX edges higher as regional market sentiment weakens — Taiwan News
- Taiwan - TSEC Weighted Index - Top 10 Companies Total Market Cap and Share — MacroMicro
- TAIEX ends week lower as investors shift focus across tech sectors — Taiwan News
- Taiwan - TAIEX Shiller CAPE vs. TAIEX Index — MacroMicro
- TAIEX gives up early gains on Monday — Taiwan News
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