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South Korea's stock market lost $2 trillion as SK Hynix stumbled despite earnings growth

A chip selloff erased $1 trillion globally, even as Samsung's AI demand surged

BEBy brt.news Editorial, Newsroom·Jul 30, 2026·1 min read
South Korea's stock market lost $2 trillion as SK Hynix stumbled despite earnings growth
Reporting based on public data sources. See Sources below.
MARKETS · brt.newsSouth Korea Stock Rout$2 trillionSouth Korea market lossStock market value erased$1 trillionGlobal chip stock lossAI-driven selloff worldwide◆ South Korea · Chip sector · 2025Reuters, CNBC, NBC News

South Korea's stock market lost $2 trillion in value as investor confidence in the chip sector fractured. The collapse came despite the fundamental strength of earnings growth at major memory-chip makers, exposing a widening gap between corporate results and market sentiment.

Chip and memory stocks bore the brunt of the selling across global markets. According to Reuters and CNBC reports, the AI-driven selloff erased more than $1 trillion in value from chip stocks worldwide. SK Hynix shares tanked even as the company posted exponential earnings growth, signaling that growth alone no longer guarantees stock resilience in a market where valuations have swung sharply.

Samsung Electronics bucked the broader decline, with second-quarter operating profit beating estimates on soaring AI chip demand. Yet Samsung's strength proved unable to steady the sector's overall decline. The Nasdaq-100 slid into correction territory as the selloff spread beyond memory specialists to ripple through the entire global chip ecosystem.

The contradiction is stark: earnings expanded while stock prices collapsed. This inversion suggests investors have shifted their calculus on chip stocks, perhaps repricing risk or rotating out of a sector that had outpaced fundamentals. South Korea's $2 trillion loss underscores how quickly gains built on AI optimism can evaporate when sentiment turns. Market breadth matters as much as individual results when sector-wide convictions reverse.

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