Profit-taking trims the rally, but 44,000 holds
The TAIEX closed at 44,396.70 on Thursday, down 214.90 points (-0.48%), in what looked like an orderly digestion of Wednesday’s surge of more than 1,250 points. The index fell nearly 600 points intraday to a low of 44,024 before buyers stepped in and pared roughly two-thirds of the damage. Turnover was heavy at NT$940.4 billion — consistent with profit-taking rather than distribution, with the psychologically important 44,000 level defended on the first test.
The drag came from the very names that led the advance. TSMC fell NT$40 to NT$2,365 (-1.66%) and was the single biggest weight on the index, while MediaTek opened higher, reversed, and closed down 2.00% at NT$3,920. Hon Hai went the other way, rising 2.32% to NT$264.50 and cushioning the index.
| Stock | Close (NT$) | Change |
|---|---|---|
| TSMC (2330) | 2,365.00 | -1.66% |
| MediaTek (2454) | 3,920.00 | -2.00% |
| Hon Hai (2317) | 264.50 | +2.32% |
| UMC (2303) | 121.50 | -0.41% |
Rotation beneath the surface
The sector tape tells a more constructive story than the headline index. The TWSE semiconductor sub-index actually rose 1.26% on Thursday even as the two largest chip names fell — clear evidence of rotation into small- and mid-cap electronics, with memory chipmakers and liquid-cooling suppliers such as Auras Technology outperforming. Financials & insurance gained 2.15% and shipping added 0.83%, so breadth outside the mega-cap tech complex was respectable. The backdrop was set overnight by Wall Street, where the Philadelphia Semiconductor Index dropped 1.40% on mixed guidance from US chipmakers, including AMD’s revenue outlook, while the S&P 500 eased just 0.17%.
Institutional flows: trusts do the heavy lifting
- Foreign investors: net BUY NT$2.02 billion — positive, but a token amount against NT$940 billion of turnover.
- Investment trusts: net BUY NT$8.86 billion — the clear source of support, extending their recent buying streak.
- Dealers (proprietary + hedge): net SELL NT$6.31 billion.
- Three institutions combined: net BUY NT$4.56 billion.
The pattern — domestic trusts absorbing supply while foreigners hold a marginal bid and dealers lighten up — fits a market consolidating after a vertical move. A firmer Taiwan dollar corroborates the absence of foreign outflow pressure: USD/TWD closed at 32.24, down 0.47%.
Positioning: previous-session derivatives still lean cautious
TAIFEX data for Thursday is not yet published, so the derivatives picture below is Wednesday’s (August 5) positioning — it describes where the market entered today, not what drove it. Foreign investors carried a net short of 87,199 contracts in TAIEX futures open interest (day’s net volume was a negligible -571 contracts), and the options put/call ratio stood at 111.87% on open interest (109.99% by volume) — a mildly defensive skew.
On the leverage side (also August 5 data), market-wide margin loans — retail leveraged longs — rose NT$2.36 billion to NT$523.5 billion, so retail added leveraged exposure into Wednesday’s rally; whether that buying proves well-timed is something the balance data alone cannot say. The institutional short channel, SBL balances, showed mixed conviction: balances rose in 508 shortable issues and fell in 340. At the stock level the channels diverged in interesting ways. In UMC, retail margin longs jumped 5,639 lots to 163,983 while institutional SBL shorts also rose 1.65 million shares — a genuine two-sided battle. In TSMC, both retail margin longs (-1,539 lots) and SBL shorts (-783,000 shares) declined, a general de-risking. Hon Hai saw SBL shorts cut by 2.33 million shares as of Wednesday, though retail margin shorts ticked up 248 lots.
The ADR gap narrows toward the bottom of its range
TSMC’s US ADRs closed Wednesday at $414.00, which works out to about 12.9% above Thursday’s Taipei close on a five-shares-per-ADR basis. That gap is structural — ADRs have habitually traded roughly 15-25% over Taipei in recent years given limited fungibility — and the two closes come from different sessions, so the level itself is not a mispricing signal. What is worth noting is that 12.9% sits below the recent band; if the gap stays compressed once the sessions realign, it would suggest US-listed holders marked TSMC down harder than Taipei did.
Technical picture
Analysts flagged roughly NT$1.2 trillion in overhead supply from positions accumulated at higher levels, which helps explain the swift intraday profit-taking. Against that, 44,000 was defended on Thursday, and TSMC’s PER of 32.33 (as of Wednesday’s TWSE data) versus MediaTek’s 66.06 frames where valuation sensitivity is concentrated. Foreign ownership remains heavy in the leaders — 69.15% of TSMC, 55.25% of MediaTek — so any real shift in the foreign bid moves the index quickly.
What to watch
- July monthly revenue filings, due Monday, August 10 — all Taiwan-listed companies, including TSMC, must report; the first hard read on whether AI-hardware demand is keeping pace with the rally.
- Today’s TAIFEX foreign positioning print — whether the 87,199-contract net futures short from Wednesday was trimmed into the pullback, or extended.
- Trust-versus-dealer tug of war — investment trusts’ NT$8.86 billion bid is carrying the tape; watch whether it persists as the NT$1.2 trillion overhead supply gets tested near recent highs.
Sources: Institutional flows, sector indices, margin and SBL balances, valuations, and foreign-ownership figures from the Taiwan Stock Exchange (TWSE); futures and options positioning from the Taiwan Futures Exchange (TAIFEX); index, stock, and currency quotes via yfinance.
Disclaimer: This is an information and analysis publication, not investment advice. See our Methodology for data sources, standards, and our corrections policy.