Tech Rout Pulls Down Nikkei 225 Even as Japanese Broad Market Gains

Tokyo’s benchmark Nikkei 225 index dropped by 1,110 yen on November 5 as a sharp selloff in artificial intelligence and semiconductor stocks dragged the market lower despite widespread gains across non-tech sectors. The slump coincided with shifts in global sentiment following US midterm election results, which sparked a sector rotation out of Asian chipmakers and into automotive manufacturers.

The pullback highlighted an unusual split inside Japan’s financial markets. While the Nikkei 225 tumbled, the broader TOPIX index actually closed higher on the same day. This divergence happened because the Nikkei gives heavy weight to high-priced technology and microchip shares, which faced heavy selling pressure after a disappointing earnings outlook from Apple and political uncertainty in Washington. Across the Tokyo exchange, the vast majority of individual listed shares ended the day in positive territory, but steep losses in a small group of tech heavyweights pulled the main benchmark down.

Why Japan’s main stock index fell while most shares rose

The stark difference between the Nikkei and the TOPIX comes down to how the two indices are calculated. The Nikkei is a price-weighted index, meaning high-priced individual stocks like semiconductor equipment makers exert an outsized influence on its daily movements. When global investors turned away from technology companies in a sector rotation dubbed the blue wave trade, capital shifted directly into traditional industrial segments like car manufacturers.

For instance, an investor tracking the Japanese market on November 5 would have seen auto stocks rising steadily alongside most listed companies. Yet, because a few mega-cap chip stocks suffered steep declines, the Nikkei plummeted 1,110 yen. This pattern mirrored market supply and demand trends recorded earlier in the autumn. Exchange data for the week of October 19 to October 23, published on October 29, revealed that foreign institutional investors net bought 24.4 billion yen in cash stocks. However, those same foreign investors net sold 175.2 billion yen in futures contracts during that single week, driving a 4% drop in the index.

The derivative selling hit international trading desks directly. Futures contracts traded on the Chicago Mercantile Exchange, which settle at 500 yen times the Nikkei 225 futures price, recorded heavy volume swings as institutional desks hedged their tech holdings against further declines in Asia.

How US elections and central bank moves rattled regional trading

Political developments in the United States added to the volatility across Asian trading desks. Investors weighed early US midterm election results and potential policy gridlock, causing sharp swings in regional indices. South Korea’s Kospi experienced notable swings, jumping 1.5% in early trade before sliding alongside Tokyo into losses of up to 4.5% as market jitters spread.

Central bank actions outside Asia further strained investor risk appetite. The Reserve Bank of Australia raised its cash rate to an 18-year high, signaling ongoing global fight against inflation. Meanwhile, commodity markets provided mixed signals. Crude oil prices fell 1.61%, offering cost relief to fuel-importing nations even as equity desks offloaded risk assets.

Why Indian equities defied the Asian market sell-off

While Japanese and South Korean benchmark indices crashed under tech and political pressures, Indian stock markets showed notable independence. Domestic indices like the Sensex and Nifty held up, buoyed by lower crude prices, steady corporate earnings, and strong domestic institutional flows.

Trading setups across late October and early November illustrate how quickly capital flows shifted between Mumbai and Tokyo:

• October 27: GIFT Nifty traded at 22,667.00 (+0.10%), signaling a flat to slightly higher open for Indian equities. Overnight, the Nikkei had surged 1.90% alongside a 0.82% gain in the NASDAQ, while Indian domestic institutional investors (DIIs) bought ₹2,609.57 crore in net equities.
• November 4: GIFT Nifty jumped 2.05% to 23,717.50, pointing to a massive gap-up open in Mumbai. Foreign institutional investors (FIIs) turned net buyers in India with a massive inflow of ₹6,836.81 crore, overpowering DII net sales of ₹3,678.85 crore even as the Nikkei slumped in morning trade.

That pattern of heavy FII buying allowed Dalal Street to decouple from Asian tech losses. Foreign funds rotated out of price-stretched semiconductor exporters in East Asia and directed capital into Indian large-cap shares, keeping local benchmarks in the green while Tokyo worked through its tech-heavy rebalancing.