Tokyo’s Post-Holiday Tech Selloff: Japan Market Desk Midsession, November 4

Market Snapshot

Tokyo reopened on November 4 after the November 3 Culture Day holiday. A Kyodo snapshot at 9:15 a.m. put the Nikkei at 62,682.35 (down 399.51) and TOPIX at 3,928.16 (down 2.12 points). Selling then intensified in expensive, index-sensitive semiconductor and AI-related shares. Around 10:01 a.m. the publicly reported readings were Nikkei 62,133.76 (down 948.10, or 1.50%) and TOPIX 3,904.74 (down about 0.65%).

Data checked: 2026-11-04 10:02 JST / 2026-11-03 17:02 PST. Neither a confirmed 11:30 a.m. morning close nor a full-day close was available for verification at this production point. The readings are intentionally labeled intraday.

What Moved Tokyo

The post-holiday bounce did not hold. The Nikkei opened at 62,973.16, briefly traded above its previous close near 63,105.47, then retreated to a reported 61,913.79 low at 9:43 a.m. It recovered above 62,000 by around 10 a.m. That rapid reversal tells a more revealing story than a single red headline number.

U.S. markets offered mixed cues: public Fisco reporting said the Dow had fallen 197.26 points to 51,786.72 on November 3 while the Nasdaq Composite rose 207.65 points to 25,372.01. In Tokyo, doubts about the pricing of large AI investment expectations appeared to outweigh support from a weaker yen. This is a measured interpretation of several overlapping influences, not proof of any single trader’s motive.

Today’s Market Mover

SoftBank Group (9984) and heavyweight AI shares — Confidence: Medium. SoftBank Group was publicly quoted at ¥4,162, down 5.62%, at around 10:01 a.m. Advantest (6857) was down 4.19% and Tokyo Electron (8035) 3.49% around the same time. The cluster of losses helps explain why the price-weighted Nikkei fell so much further than the broader TOPIX.

No independently verified company announcement establishes a single cause for SoftBank Group’s intraday decline. The more defensible market-mover theme is valuation risk across AI-linked shares. The recent response to Kioxia’s outlook had already shown that even strong growth expectations can disappoint if investors were expecting still more.

Sector Pulse

The publicly reported 10 a.m. cross-section showed Kioxia Holdings (285A) down 7.32% and Kyocera (6971) down 6.85%, alongside weakness in chip equipment and other AI-linked leaders. The market was not uniformly weak, however: Yamato Holdings (9064) was reported up 13.95% and Kurita Water Industries (6370) up 11.17% at roughly the same time.

The contrast between Nikkei and TOPIX is an important lesson in index construction and concentration, but an early snapshot should not be mistaken for a complete sector performance table. Confirmed closing sector returns were not yet available.

Yen Watch

The dollar traded in the ¥158.50s at the Tokyo open according to public Fisco commentary. SBI Shinsei Bank’s public rate screen separately displayed ¥158.71 at 5:27 a.m. November 4. These observations are at different times and are not treated as a same-moment comparison.

A cheaper yen can lift the translated earnings of exporters but also raises the yen cost of imported energy and food. That trade-off is central to Japan’s economy. This morning it was not enough, by itself, to outweigh the markdown in AI- and semiconductor-linked shares.

Rates / JGB Watch

The most reliable openly timestamped 10-year Japanese government bond yield found for this report was 2.770%, dated November 2. A confirmed intraday November 4 yield was not available, so this report does not assert a new rise or fall in JGB yields.

Higher discount rates can be particularly important for companies valued on profits many years into the future. Banks, insurers and real estate can respond differently to changes in rates. Those are general mechanisms, however; what actually happened to Japanese yields on November 4 must be checked against a fresh market reading.

Global Handoff

This is a morning-market report, not a late-night wrap. November 4 trading in Europe and the United States had not yet unfolded at the time of the observations, so this edition does not import future developments into the explanation of Tokyo’s morning. The previous U.S. session’s mixed Dow and Nasdaq performance gave Japan no simple global direction to follow.

The next meaningful handoff will involve U.S. technology stocks, Treasury yields, the dollar/yen pair and European risk appetite. No specific November 4 overseas closing figures are presented here.

Policy / BOJ Watch

Investors were watching Bank of Japan expectations, U.S. interest rates, the U.S. midterm-election news flow and any fresh commentary from Japan’s Ministry of Finance on the exchange rate. No new November 4 policy decision was verified in the sources used for this morning report.

There is an additional timing issue: during the Japanese public holiday, overseas information kept accumulating while Tokyo cash shares were closed. The first session after a holiday can therefore reflect several sessions of outside news at once.

Publisher’s Market Note

A weaker yen is no longer a sufficient explanation for every good or bad day in Japanese shares. The market is asking a harder question: how much should investors pay today for promised AI profits that may arrive years from now? Japan’s answer should not be judged solely through the biggest technology names. Logistics, manufacturing, tourism and household wages remain part of the story.

The early November 4 reversal is a reminder that expectations and prices can part company quickly. The job of market journalism is not to turn a volatile morning into a grand national verdict, but to show where the pressure is building and what would confirm or contradict the story.

Before the Next Open

• Verify the official 11:30 a.m. morning close and whether selling persists during the afternoon.
• Track SoftBank Group, Advantest and Tokyo Electron through the full session.
• Watch whether the gap between Nikkei and TOPIX performance narrows.
• Recheck yen and JGB prices with matching timestamps.
• Review the November 4 U.S. session before Tokyo reopens on November 5.

Sources and Method

This report uses publicly available information only and reproduces no paid material. Index and stock quotes are timestamped intraday readings, not morning or final closes. This is market journalism, not investment advice.

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