The Nikkei 225 staged a partial recovery in the afternoon session on September 11, but the rebound did little to mask the continuing selloff in Japan's semiconductor sector. The benchmark index closed the day at 63,962.30, down 1,308.65 points, or 2.00%, after touching an intraday low of 63,208.63. That marked a 753.67-point bounce from the bottom, though the index remained 492.91 points below its morning close of 63,469.39.
The gap between the morning and afternoon performance is telling. At the lunch break, the Nikkei was down 2.76%, but by the 3:30 p.m. Tokyo close, the loss had narrowed to 2.00%. While that suggests some dip-buying emerged, the stocks at the heart of the selloff—particularly chip-related names—never turned positive, indicating the recovery was more about damage control than a fundamental shift in sentiment.
Semiconductor Pressure Intensifies
The semiconductor complex remained the primary drag. Advantest closed at ¥31,700, down 6.54%, while Lasertec fell 4.79%, SoftBank Group dropped 4.08%, Tokyo Electron declined 2.92%, and Disco lost 2.80%. These declines carry outsized weight in the Nikkei because the index is price-weighted, not market-cap weighted. As a result, a rebound in lower-priced or less influential stocks can lift the overall index without fully offsetting losses in the high-priced technology names.
This dynamic means the final index move tells two stories simultaneously: buyers were willing to step in near the 63,200 level, but they were not prepared to erase the valuation reset in the most expensive AI and semiconductor exposures. The global backdrop added to the pressure, with the Nasdaq Composite falling 0.65% in the prior U.S. session. A current Asia-market report highlighted weakness in Kioxia, SoftBank, and Advantest as part of a broader chip selloff, with oil prices, Treasury yields, and Federal Reserve expectations also contributing to the risk-off tone.
Currency Movements Offer Limited Support
Currency movements provided some relief for exporters. USD/JPY was near 154.09 around the Tokyo close, up from 153.57 in the previous session—a roughly 0.34% weakening of the yen. A softer yen typically boosts the translated value of overseas earnings, but it was not enough to override the decline in chip shares.
This creates a nuanced picture for investors in Japan-focused funds. A Nikkei-linked product absorbs the full 2.00% local-currency index loss at Friday's close. An unhedged dollar-based investor also has to account for yen movements, while a currency-hedged product is more directly exposed to the equity move. The afternoon bounce may make the headline look less severe, but it does not make those exposures equivalent.
Key Levels to Watch
Looking ahead, the session's low of 63,208.63 is the first downside marker. A break below that level in the next Tokyo session would suggest Friday afternoon's buyers were tactical rather than durable. On the upside, 64,312.02—the day's high—is the first level that would indicate the recovery is broadening beyond a late-session bounce. Friday's close remained about 350 points below that threshold.
The most persuasive bullish counterargument is the 1.19% rebound from the intraday low: investors did not simply wait for the close while prices cascaded lower. However, the bearish side points out that every major chip bellwether listed above ended sharply down, with Advantest closing more than 6% lower even after recovering from its ¥30,980 low.
The next decisive signal is unlikely to come from the Nikkei headline alone. Investors should watch whether U.S. technology shares stabilize, whether bond and oil pressure eases, and whether Advantest and Tokyo Electron can stop making lower lows. The closing number improved substantially from lunch; the market's leadership problem did not.
