Stock Market Today, June 30: Rocket Lab Soars on Acquisition and Major Indexes Gain

Major stock indexes closed higher on June 30, 2026, with the S&P 500 rising 0.79% and the Nasdaq Composite gaining 1.52%, marking the strongest quarter since 2020. Tech and industrial sectors led gains, while Rocket Lab surged following its $8 billion acquisition of Iridium Communications. Intel also rose 6% amid AI stock momentum. Gold prices slipped slightly, and analysts suggest further rallies are possible in July.