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Morning Edition · Friday, July 17, 2026Published at 1:11 AM EDT · New York

Semiconductor Selloff Spreads From Wall Street to Asia, Nikkei Falls More Than 4 Percent

SoftBank lost about 9 percent and memory maker Kioxia nearly 16 percent as investors pulled back from the artificial-intelligence trade that led markets higher this year.

Semiconductor Selloff Spreads From Wall Street to Asia, Nikkei Falls More Than 4 Percent

A retreat from the companies that led global equities higher through the first half of 2026 accelerated on Friday. A decline in United States chip and memory shares spread into Asian trading and pulled major benchmarks sharply lower.

Japan's Nikkei 225 fell as much as 4 percent, according to reporting from Tokyo. The technology investor SoftBank dropped around 9 percent and the chip-equipment maker Advantest fell by a similar margin. The memory manufacturer Kioxia declined close to 16 percent in a single session, extending a slide that has removed roughly 44 percent of its value in a month. The Israeli financial outlet Globes reported that the negative sentiment affecting chip shares in the United States reached exchanges across the East, with South Korea's market closed for a local holiday.

The Financial Times described the move as investors pulling away from the shares that had led markets higher this year, a rotation out of richly valued stocks rather than a broad economic alarm. Netflix added to the caution, falling more than 8 percent in after-hours trading on Thursday. Its revenue and earnings came in roughly in line with estimates, but its forecast for the current quarter disappointed. Taiwan Semiconductor Manufacturing's outlook, delivered a day earlier, failed to reassure investors who have grown more skeptical about how quickly artificial-intelligence spending will convert into profit.

The pullback matters because a handful of chip and platform companies now account for an outsized share of index gains, so a repricing of their earnings assumptions moves entire markets. From a sound-money view, the episode illustrates how years of cheap credit concentrate capital into a narrow set of assets whose valuations depend on continued expectations of abundant liquidity. When those expectations soften, the correction is fast and broad.

Part of a tracked trend

AI Trade Derating

Concentration of index gains in a few AI-linked chip and platform stocks makes global equities recurrently vulnerable to sharp, correlated drawdowns whenever investors question the return on AI spending.

What this means

The AI trade now supports much of the gain in global equity indices, so a derating of chipmakers and memory producers passes directly into pension and index-fund returns worldwide, not just into technology sectors. Exposed are leveraged technology investors like SoftBank, memory makers whose margins swing with the capital-spending cycle, and any index heavily weighted toward a few large stocks. The channel is valuation multiples compressing as investors demand proof that AI capital spending earns a return.

What to watch

  • Whether US megacap technology earnings due over the next two weeks confirm or ease the profit doubts, since guidance will decide if this is a rotation or the start of a deeper derating.
  • Kioxia and other memory makers' order books, which show whether AI-driven hardware demand is genuinely slowing or merely repricing.

Observations to monitor, not financial advice.

3 sources

Synthesized from: Financial Times · Globes (Hebrew) · CNBC