S&P 500 and Nasdaq hit fresh record highs, while Dow lagged and finished with slight losses.

Nasdaq and Russell 2000 hit fresh highs as Micron surges 18%. The iShares Semiconductor ETF jumped 4.8%, pushing year-to-date gains past 80%.

US stocks closed mixed with Nasdaq and S&P 500 hitting record levels as AI-driven optimism lifted tech and chip stocks. Micron surged into the $1 trillion club after a strong…