A rally that ran out of buyers
The TAIEX closed at 44,225.91 on Friday, August 7, down 170.79 points or 0.38%, and the shape of the session told the story better than the closing print. The index pushed past 44,800 in early trading before sellers took over, and by the 13:30 bell it had slipped back beneath its quarterly moving average around 44,278 — a level technicians will now watch as near-term resistance-turned-pivot. Turnover was heavy at roughly NT$819.2 billion. Local commentary framed the reversal as profit-taking after a sharp run-up, compounded by hedging pressure connected to foreign investors’ persistent short positioning in index futures.
Institutional flows: all three legs selling
The flow data — this site’s signature metric — left little ambiguity about who was doing the selling. All three institutional categories were net sellers on Friday, per official TWSE data:
| Investor category | Net trading value (Aug 7) |
|---|---|
| Foreign investors | NT$-40.72B (net sell) |
| Investment trusts | NT$-2.56B (net sell) |
| Dealers (prop + hedge) | NT$-0.97B (net sell) |
| Three institutions combined | NT$-44.24B |
Foreign selling of this size, into an index that had just made new highs intraday, is the kind of distribution day that deserves respect even when the headline decline is modest. The currency, notably, barely reacted: USD/TWD ended the session near 32.2, with the Taiwan dollar marginally firmer on the day, suggesting Friday’s equity outflow was not accompanied by aggressive currency repatriation.
Heavyweights: TSMC alone above water
TSMC (2330) was the day’s outlier, adding NT$5 to close at NT$2,370 (+0.21%), supported by continued confidence in its 2026 capital-expenditure target of US$62 billion and its 2-nanometer execution. That single stock’s resilience kept the TWSE Semiconductor sub-index positive at +0.21% even as the rest of the complex sagged.
- Hon Hai (2317) fell 1.70% to NT$260.00.
- MediaTek (2454) slipped 0.51% to NT$3,900.00.
- UMC (2303) was the notable casualty, down 4.53% to NT$116.00 — a sharp move for a stock trading at 18.27x earnings and 3.43x book as of Thursday’s data.
Beneath the tech weakness there was a defensive rotation: the Shipping index gained 1.29% and Financials & Insurance rose 0.99%, with local reports pointing to interest in petrochemicals and select financials as money came out of extended tech names.
Positioning: the stress gauges, kept in their lanes
Taiwan’s three leverage and short channels are distinct instruments, and the latest readings (derivatives and leverage data are as of Thursday, August 6 — the exchange publishes with a one-day lag) point in different directions:
- Foreign futures positioning (prior session): foreign investors carried a net short of 89,383 TAIEX futures contracts into Friday, having sold a net 2,121 contracts on Thursday. This was the backdrop to Friday’s session, not a description of Friday’s activity — today’s TAIFEX data publishes next session.
- Options (prior session): the put/call ratio stood at 109.77% on open interest and 109.14% on volume — modestly put-tilted, consistent with hedged rather than panicked positioning.
- Retail leveraged longs (margin purchases): the market-wide margin loan balance rose NT$9.31 billion to NT$532.8 billion as of Thursday. Retail was adding leverage into the highs — TSMC margin balances rose 723 lots and Hon Hai’s rose 1,668 lots, while UMC longs cut exposure by 4,147 lots.
- Institutional shorts (SBL, distinct from retail margin shorts): breadth tilted toward more shorting — balances rose in 528 shortable issues versus falling in 354. At the single-stock level the picture was mixed: TSMC’s SBL balance rose 356,000 shares, while Hon Hai saw a substantial 4.24 million shares of short covering and MediaTek’s balance fell 339,000 shares.
Put together, the scoreboard reads: foreigners selling cash and already short futures, retail adding leverage, institutional shorts broadening. That combination — smart-money caution against retail enthusiasm — is worth monitoring, though it summarizes the data above rather than adding to it.
ADR gap and the global tape
TSMC’s ADR closed at $418.20 in Thursday’s US session, roughly 13.9% above where the Taipei line settled on Friday. A reminder for readers newer to this market: the ADR premium is structural — it has run roughly 15-25% in recent years owing to limited fungibility — and the two closes come from different sessions. At 13.9% the gap sits at the low end of its recent range; the day-to-day change in the gap is the signal, never the level itself.
The overnight US backdrop was mildly supportive rather than the culprit: the Philadelphia Semiconductor Index rose 0.33% Thursday US time, the S&P 500 eased 0.18%, and S&P futures were fractionally higher (+0.04%) during Asian hours. Global sentiment remains underpinned by record monthly semiconductor sales of $120.6 billion and sustained AI-infrastructure capex from US cloud vendors.
What to watch
- Monday, August 10 — monthly revenue filings. Taiwan-listed companies, including TSMC, must report July sales by the deadline. After Friday’s distribution day, the tape will need fundamental confirmation.
- Foreign futures positioning. Whether the 89,383-contract net short (as of Thursday) grew or was covered on Friday — published next session — will show if Friday’s NT$40.7 billion cash sale was hedge-driven or a directional turn.
- The quarterly moving average near 44,278. Friday’s close just below it makes an early-week reclaim, or failure, the cleanest technical tell.
Disclaimer: This is an information and analysis publication, not investment advice. See our Methodology for data sources, standards, and our corrections policy.