Major U.S. indices closed mixed with tech and small-caps rallying, while the Dow Jones Industrial Average declined slightly.
The S&P 500 and Nasdaq Composite closed at record highs, rising 0.61% and 1.19% to 7519.08 and 26656.18, respectively. The Russell 2000 surged 1.79% to 2920.54, also setting a new record. The Dow, however, fell 0.23% to 50467.06 after hitting a high earlier in the week.
Micron Technology led gains among semiconductor stocks, soaring 19.29% to $895.88 after trading between $820.30 and a peak of $916.76. The rally reflects strong investor appetite for AI-driven demand in memory and data-center chips. The stock closed near $900, a key psychological level, with $916.76 as the next resistance target.
The mixed performance highlights sector divergence, with tech and small-caps outperforming while blue-chip stocks lagged. Traders are watching support levels at $820–$830 for Micron, with a break below potentially signaling a pullback.