STOXX 600 Climbs 0.6% to 639.82 on Renewed AI Tech Rally

European equities extended gains on June 30 as technology stocks rebounded on fresh AI optimism, lifting the STOXX 600 0.6% to 639.82. The index remains on track for a 9.7% quarterly advance, its strongest since October 2020, led by a 1.7% surge in tech shares poised for their best quarter since 2001. ASML, STMicroelectronics and Infineon rose 2-3%, while lower oil prices and patient ECB signals further supported risk appetite across the region.