Semiconductor and Electronics Surge Drives Broad Tech Rally in Tokyo — September 24, 2026

Market Overview

Tokyo equities staged a notable tech-driven rally on September 24, 2026, with semiconductor and electronics names leading the charge across the Nikkei 225. The session was marked by a striking divergence between hardware-oriented industrial sectors — which surged — and financial, utility, and services stocks, which faced meaningful selling pressure. Breadth was mixed overall, though the strength in high-value technology components gave the day a decidedly risk-on tone for equity investors tracking Japanese growth themes.

Top Gainers

The standout mover of the session was Socionext Inc (6526), which surged +15.00%, posting the largest single-day gain among Nikkei 225 constituents. The fabless semiconductor designer was joined at the top by Ibiden Co Ltd (4062), a key supplier of advanced IC substrates, which jumped +14.57% — a pairing that suggests renewed investor enthusiasm around next-generation chip packaging and AI-related hardware demand.

• Resonac Holdings (4004) gained +6.94%, reinforcing strength in specialty chemicals tied to the semiconductor supply chain.
• Tokai Carbon (5301) rose +6.84%, while Nikon Corp (7731) climbed +6.44%, benefiting from its exposure to precision semiconductor lithography equipment.
• Sumitomo Electric Industries (5802) advanced +5.77% and Renesas Electronics (6723) added +5.47%, broadening the electronics rally beyond pure-play chip names.
• Panasonic Holdings (6752) gained +5.16%, with Minebea Mitsumi (6479) rounding out the top ten at +4.37%.

The concentration of gains in semiconductor-adjacent and precision components companies points to a thematic re-rating rather than isolated, stock-specific catalysts.

Top Decliners

Recruit Holdings (6098) was the session’s sharpest laggard, tumbling -7.78% — a notable reversal for one of Japan’s premier services and human capital platforms. The selling in Recruit weighed heavily on the broader Services sector, which shed -1.81% on the day.

• Utility stocks came under significant pressure: Kansai Electric Power (9503) fell -4.82% and Tokyo Electric Power (9501) dropped -4.42%, contributing to a steep -3.58% decline in the Electricity sector.
• Osaka Gas (9532) slid -4.45%, part of a broader -3.35% retreat in the Gas sector.
• MS&AD Insurance Group (8725) declined -4.73%, reflecting the -2.71% sector-wide pullback in Insurance.
• Itochu Corp (8001) fell -3.73%, dragging Trading Companies down -2.36%, while Mercari (4385) lost -3.92% amid continued softness in consumer internet names.

Sector Snapshot

Precision Instruments (+2.46%) and Electrical Equipment (+2.33%) topped the sector leaderboard, underpinned by the same AI and semiconductor hardware narrative driving individual gainers. Rubber (+2.04%) and Ceramics (+1.93%) — both with meaningful exposure to electronic component materials — also outperformed. Chemicals and Machinery each gained +1.12%.

On the other side of the ledger, Electricity (-3.58%), Gas (-3.35%), and Insurance (-2.71%) led declines, with Shipping (-2.54%), Securities (-2.22%), and Mining (-2.02%) also underperforming. The rotation out of rate-sensitive financials and defensive utilities into technology hardware was the defining theme of Thursday’s session in Tokyo.

Source: Tokyo Stock Exchange data | Japan Economic News