Taiwan Stock Market Wrap: June 25, 2026 — Micron to the Rescue
After a brutal June 24 session that saw record institutional selling and a 1,057-point plunge, Taiwan’s stock market staged a technical rebound on June 25. Micron’s blockbuster earnings report served as a timely catalyst, with the TAIEX opening higher and reclaiming the 46,700 level intraday.
Market Recap: V-Shaped Rebound After 1,000-Point Rout
June 24 delivered the most violent single-day correction of the year. The TAIEX closed at 46,043.60, down 1,057 points (-2.24%), with massive turnover of NT2,400, closing at NT$2,390, down 4.02%.
But traditional industries broke through the gloom. Petrochemical stocks surged on recovering oil prices and chemical product quotes. Formosa Plastics and Formosa Chemicals both hit the daily limit, with the oil & gas sector up 4.72% and plastics up 3.68%.
On June 25, buyers returned at the open. The TAIEX started at 46,339 (+0.64%), reaching an intraday high of 46,785 (+1.61%) — a textbook technical bounce.
| Time | Index | Change |
|---|---|---|
| June 23 Close | 47,100.65 | -640 pts |
| June 24 Close | 46,043.60 | -1,057 pts (-2.24%) |
| June 25 Open | 46,339.68 | +296 pts |
| June 25 Intraday High | 46,785.45 | +742 pts (+1.61%) |
In three trading days, the TAIEX plunged from 47,100 to 46,043, then rebounded over 700 points — extreme volatility by any measure.
Institutional Flows: Foreign Selling Hits All-Time Record
June 24 institutional activity set multiple records:
| Player | Net Buy/Sell (NT$ Bn) | Direction |
|---|---|---|
| Foreign Investors | -177.42 | Sell |
| Investment Trusts | +3.67 | Buy |
| Proprietary Dealers | -36.49 | Sell |
| Combined | -210.24 | Record High |
Foreign investors’ single-day net selling of NT605 billion. With foreigners bearish on both cash and futures, positioning risk remains the biggest near-term headwind.
On individual stocks, foreign investors mainly sold Taiwan Glass (38K lots), Foxconn (32K lots), and AUO (29K lots). Buying concentrated on China Airlines (34K lots), KYEC (32K lots), and UMC (28K lots) — signaling rotation out of heavyweight tech into airlines and thematic plays.
Government-linked funds stepped in to support the market on June 24 but had aggressively sold NT$20.8 billion on June 19 when the market rallied — a clear pattern of buying dips and selling rips.
Key Catalysts: Micron Blowout, Petrochemical Strength, Global Backdrop
Micron Q3: Every Metric Crushed
Micron reported fiscal Q3 2026 results after the June 24 close, beating across the board:
| Metric | Actual | YoY | Consensus |
|---|---|---|---|
| Revenue | $41.46 B | +346% | $35.8 B |
| Gross Margin | 84.9% | — | — |
| Adj. EPS | $25.11 | +1,200% | $20.60 |
| Q4 Revenue Guide | ~$50 B | — | $42.5 B |
Key drivers: data center SSD revenue exceeded 1 billion, cloud storage revenue hit $13.77 billion (+306%).
CEO Sanjay Mehrotra stated unequivocally: memory supply tightness will persist beyond 2027. Full-year capex of $27 billion, with further increases in fiscal 2027. HBM capacity is essentially sold out for 2026.
Micron shares surged over 16% after hours, directly fueling a broad rally in Asian semiconductor and memory names on June 25 — the single biggest catalyst for Taiwan’s rebound.
Petrochemicals Maintain Momentum
After Formosa Plastics’ limit-up performance on June 24, the market is watching for follow-through. Formosa Chemicals led on propylene price recovery expectations, while Formosa Petrochemical benefited from oil price support. Upstream raw material recovery expectations remain intact, though some downstream processors have already corrected.
Global Backdrop
US markets were mixed on June 24: Dow +0.35%, Nasdaq -0.43% (third straight decline), S&P 500 -0.10%, Philadelphia Semiconductor -0.18%. Tech valuation concerns persist, but Micron’s results may shift near-term sentiment.
Oil prices continued retreating as tankers resumed crossing the Strait of Hormuz, with Brent crude falling to ~$73/barrel — back to pre-conflict levels. Geopolitical risks remain: Iran and Oman are discussing transit fees for vessels passing through the strait.
Bitcoin again dropped below $60,000, signaling cautious risk appetite across asset classes.
Bottom Line: Taiwan equities are experiencing a technical bounce after extreme selling, with Micron’s blowout earnings providing powerful fuel. But with foreigners bearish on both cash and futures, and margin debt at record levels, positioning risks cannot be ignored. The petrochemical turnaround narrative continues, while semiconductor/memory names will depend on whether the Micron effect has staying power.
This content is for informational purposes only and does not constitute investment advice.
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