Taiwan stocks fell by 2,953 points. What really matters isn’t the record—it’s whether the selling pressure has changed its nature.

This morning, when the Taiwan market was still down by around 4%, it looked more like a group digestion after the Nasdaq’s heavy selloff, with Asian semiconductor stocks absorbing elevated expectations together.

By the close, there’s one more layer you need to look at.

Taiwan stocks finished down 2,953.71 points to close at 42,671.27 points, a decline of 6.47%, marking the largest single-day point drop on record.

First, a reminder: this is the largest number of points lost in a day in history, not the largest percentage decline. The index’s base is now higher, so the same percentage naturally translates into more points.

What’s truly important is that the selling pressure didn’t converge after the midday session like yesterday; instead, it kept expanding all the way to the close.

TSMC fell 7.29%. A single company accounted for about 45% of today’s total point drop. But this time it’s not just TSMC. The OTC index fell 7.02%, MediaTek fell 8.92%, and clear selling pressure appeared across memory, OSAT, IC design, silicon wafers, substrates, and passive components.

This indicates the market has moved from “re-pricing an earnings report” to “reducing overall AI and electronics exposure.”

Cash flow also supports this view.

The three major legal investor groups together sold a net total of about 261.7 billion yuan today. Foreign investors and mainland China investors sold a net total of about 1,890 billion yuan (about 189.0 billion yuan), and proprietary traders sold a net total of about 822 billion yuan (about 82.2 billion yuan); meanwhile, investment trusts bought a net total of about 95 billion yuan (about 9.5 billion yuan) against the trend.

Large-scale risk repositioning by foreign investors, along with adjustments to risk-hedging positions by proprietary traders, can cause spot, futures, and index heavyweight stocks to amplify each other. When the market is also trying to reduce risk at the same time, the largest-cap stocks—normally the ones with the best liquidity—are often the first to be sold.

And today isn’t only about Taiwan stocks.

The Nikkei closed down 4.03%. Intraday, it once fell as much as 6.18%, which is already 11.3% below the June 25 high, officially entering what’s generally referred to as a correction zone. Japan’s Kioxia fell 16.1%, SUMCO fell 15.17%, and semiconductor equipment and memory stocks are still the pressure points.

U.S. stocks also didn’t stabilize immediately after the open. As of the time of this report, the S&P 500 was down 1.3% and the Nasdaq was down 2.1%; Nvidia, Applied Materials, and Micron continued to drift lower. Netflix fell 10.9% because its revenue and outlook for the next quarter came in below market expectations, indicating that the problem of earnings-report thresholds being too high isn’t confined to chip stocks anymore.

Oil prices have brought a second layer of pressure.

Brent crude rose to $86.70 per barrel. A week earlier it was still around $76. When tech stocks are being revalued and oil prices are rising, it also increases uncertainty around inflation, interest rates, and corporate costs—so naturally the market is even less willing to absorb high-volatility assets.

So tonight’s takeaway is more cautious than this morning’s.

This isn’t only short-term “good news running out” after the release of TSMC’s earnings; it’s a cross-market risk de-risking.

But cross-market de-risking doesn’t mean AI demand has already collapsed.

TSMC’s Q2 earnings, its Q3 revenue guidance, and its gross margin are still strong, and ASML has already raised its full-year sales outlook. What the market is adjusting first now is valuation, leverage, and risk tolerance. Whether company fundamentals also weaken along with that still requires more earnings reports to confirm.

What to watch next isn’t whether there will be an immediate rebound tomorrow, but three things.

1. Can U.S. semiconductor stocks stabilize first?

2. After next week’s re-trading across Taiwan, Japan, and South Korea, whether trading volume and selling pressure have shrunk.

3. Whether companies have started to cut back AI orders, capital expenditures, or gross margins.

If prices fall first and fundamentals don’t follow with downward revisions, that looks more like a valuation and position adjustment.

If prices fall and then orders and guidance also start going down, that’s when it would indicate this round of correction has entered the next phase.

Five more things tonight

1｜Taiwan stocks post the biggest single-day point drop in history

The Taiwan Weighted Index closed at 42,671.27, down 2,953.71 points, or 6.47%, with trading value of about 1.21 trillion yuan. This is the record for the biggest point drop, not the record for the biggest percentage decline.

2｜Foreign investors and proprietary traders sell heavily at the same time

The three major legal investor groups together sold a net total of about 261.7 billion yuan. Foreign investors and mainland China investors sold a net total of about 1,890 billion yuan (about 189.0 billion yuan), and proprietary traders sold a net total of about 822 billion yuan (about 82.2 billion yuan). Investment trusts bought a net total of about 95 billion yuan (about 9.5 billion yuan). Large-scale risk adjustment is an important backdrop to the continued expansion of the decline.

3｜The Nikkei enters the correction zone

The Nikkei index closed down 4.03% to 64,141.12 points, down 11.3% from the June 25 high. Kioxia, SUMCO, and Screen Holdings fell 16.1%, 15.17%, and 12.04%, respectively.

4｜U.S. stocks extend AI selling pressure after the open

As of the time of this report, the S&P 500 was down 1.3% and the Nasdaq was down 2.1%. Nvidia was down 3.4%, Applied Materials was down 6.9%, and Micron was down 4.8%; related figures will still move with intraday trading.

5｜Oil prices become the second source of risk

Brent crude rose 2.9% to $86.70 per barrel, about $76 a week earlier. The Iran-Iraq conflict and concerns about Hormuz transport risks are re-increasing risks related to inflation and corporate costs.

Data cutoff: 2026-07-17 22:20 (Singapore time)