Nikkei Plunges 4% as Chip Stocks Track Global Tech Selloff Amid AI Spending Fears

• Japan's Nikkei 225 index plunged over 4% as chip stocks tracked a sharp global technology sector decline, with semiconductor companies bearing the brunt of the selloff.
• The Nikkei decline is directly linked to weakness in global technology stocks, particularly semiconductor names, as AI spending growth expectations face recalibration amid earnings season.
• Major Japanese chipmakers and semiconductor equipment manufacturers saw outsized declines, mirroring pressure on US semiconductor giants like NVIDIA and AMD in overnight sessions.
• The selloff highlights Japan's equity market vulnerability to global technology sentiment shifts, with the chip-heavy Nikkei amplifying moves seen across TSMC and Korean semiconductor stocks.
• For Indian markets, the Nikkei's sharp decline signals potential pressure on India's Nifty IT index as global technology risk-off sentiment spreads across Asian markets.

Japan's Nikkei 225 fell over 4% as a sharp global technology selloff, centered on semiconductor stocks, propagated across Asia-Pacific equity markets. The decline reflects the Nikkei's significant weighting in technology and semiconductor-adjacent companies — including semiconductor equipment manufacturers and electronics conglomerates — that make the index particularly sensitive to shifts in global AI spending narratives. When US technology heavyweights face multiple compression, the Nikkei tends to overshoot on the downside due to its high tech concentration.

The immediate trigger appears to be recalibration in AI-related spending expectations, with markets questioning whether hyperscaler capital expenditure on AI infrastructure can sustain at the growth rates priced into semiconductor valuations. Japanese companies like Tokyo Electron (semiconductor equipment) and Advantest (chip testing) are directly exposed to the capex decisions of TSMC, Samsung, and their US customers. When AI spending growth forecasts compress, the entire supply chain — from wafer fabrication to testing to packaging — faces valuation headwinds simultaneously.

For investors with Asia-Pacific exposure, the Nikkei's 4% single-session decline warrants attention not just as a Japan-specific event but as a signal of global technology sector fragility. The interconnection between US semiconductor stock movements and Asian equity markets — running through Japan, South Korea, and Taiwan — means that any sustained recalibration in US AI spending expectations will reverberate across the region. India's Nifty IT index, while less directly tied to hardware semiconductors, faces sentiment contagion as global technology risk appetite compresses. The key question is whether this is a healthy valuation correction or the beginning of a more sustained de-rating cycle for AI-adjacent equities.

Sources: Economic Times Markets | AI synthesis for informational purposes only.