This bearish ‘key reversal’ chart pattern could be why chip stocks suffered a rare selloff

A textbook bearish “key reversal” appeared in South Korea’s Kospi Composite after a parabolic rally, with the index down 2.3% following a record close. The signal — a classic technical-analysis reversal pattern — coincided with a broad selloff in the U.S. chip complex, where the PHLX Semiconductor Index plunged about 3% (29 of 30 components lower). MarketWatch notes an extremely high short-term correlation (0.98 since March 30) between the Kospi and the SOX, implying the Kospi’s technical fatigue could spill into U.S. tech and semiconductor stocks. Analysts say the pattern warns of near-term consolidation or a pullback but don’t necessarily signal a definitive long-term trend reversal; momentum measures were already “extreme” after large gains. Overall market impact: a technical warning for investors in tech/chip-related benchmarks to expect potential short-term weakness or consolidation.