Japan's benchmark index suffers its steepest single-day decline in months as investors dump semiconductor names, mirroring a global tech rout that's reshaping risk appetite across asset classes.
The Nikkei 225 plunged 5% as investors aggressively sold chipmaker and AI-related stocks, erasing weeks of gains in a single session. The selloff marks one of the sharpest daily declines for Japan’s benchmark index this year, and it sent shockwaves across Asian equity markets.
The damage report #
The carnage was broad but concentrated in Japan’s most prominent tech and semiconductor names. SoftBank Group shares fell nearly 7% in a single session. Tokyo Electron, the country’s largest chipmaking equipment manufacturer, declined over 5%.
Advantest, which supplies testing equipment for the world’s most advanced chips, dropped more than 6%. Renesas Electronics, a major automotive and industrial chipmaker, shed 4%.
In a prior session, the Nikkei had already closed at 66,835 after a 2.79% drop. The index has now posted multiple daily declines ranging from 2% to nearly 5% across June and July.
The pain wasn’t confined to Tokyo. South Korea’s Kospi fell approximately 5% or more, with Samsung Electronics and SK Hynix, two pillars of global memory chip production, posting double-digit percentage drops.
Why now, and why this hard #
The proximate cause is straightforward: profit-taking after a monster rally. A 38% gain in six months is the kind of performance that makes portfolio managers look like geniuses, right up until they don’t lock it in.
In the US, earlier weakness in bellwether names like Nvidia and Micron set the tone. Mixed earnings reports and guidance that didn’t quite match the euphoric expectations baked into stock prices created cracks.
Hedge funds have reportedly been net sellers of tech hardware for several consecutive weeks. Valuation concerns are at the center of this rotation, with the macroeconomic backdrop complicated further by fluctuating oil prices and uncertain interest-rate expectations.
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