Market Indexes Close Out June With a Tech-Fueled Tuesday Rally

Semiconductors powered a late-June rally, with the semiconductor ETF surging 3.6% as tech stocks closed the month in the green. The Nasdaq Composite climbed 1.34%, the S&P 500 added 0.71%, and the Dow Jones Industrial Average rose 0.29% on the final trading day of June.

Chip momentum came from AI infrastructure optimism, lifting the sector to its strongest single-day performance in weeks. SpaceX jumped 4.1% on discussions around government investment programs, adding to the tech-heavy rally that dominated Tuesday's session.

The disparity between Nasdaq and Dow gains—1.34% versus 0.29%—underscores the concentration of bullish momentum in growth and technology names rather than traditional industrials. The semiconductor ETF's 3.6% move represents roughly triple the Nasdaq's advance, signaling sector-specific enthusiasm beyond broad market participation.

Tech's outperformance closed out a volatile June marked by rotation debates between growth and value, with Tuesday's action tilting decisively toward semiconductors and AI-adjacent names.