Stock Market News, May 26, 2026: S&P 500 and Nasdaq book fresh records as memory-chip stocks rally, Dow ends lower; investors wait for updates on peace deal with Iran - MarketWatch
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Micron surged 19.3% to a new all-time high, joining the $1 trillion club on AI-driven memory demand and its Virginia fab ramping to full capacity, helping lift the S&P 500 and Nasdaq to fresh records. The massive single-day move creates a classic post-breakout setup where the stock either consolidates and holds or sees sharp profit-taking from insiders who have been selling heavily.
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↓ SHORT-8% target+5% stop2-3 weeks
Fade MU short-term via near-dated puts or wait for a 5-8% pullback before entering long, given 54 insider sells in 30 days and a 19% single-session gap that historically reverts.