Lumentum Holdings shares rose 5.66% to $973.48 as artificial intelligence infrastructure developments and broader technology-market initiatives supported expectations for sustained data-center investment. OpenAI reported a $70 billion annualized revenue run rate and 70% sequential growth as of the third quarter of 2026, alongside $38.5 billion in fiscal 2025 net losses, and introduced autonomous Dots agents for enterprise platforms including Slack and Microsoft Teams. AMD completed an approximately $8.2 billion all-stock acquisition of Fei-Fei Li’s World Labs, while separate reports put Anthropic’s compute agreement with SpaceX at $84.5 billion. Nvidia added $150 billion to its share repurchase authorization, bringing total capacity to approximately $235 billion through fiscal year 2028, and its shares rose more than 2%. Robinhood plans 24/7 trading for selected U.S. equities and ETFs through Bruce ATS, pending final regulatory clearance, while Micron was scheduled to report quarterly results after the market close with investors focused on high-bandwidth memory demand. Softer-than-expected August inflation helped lift the Nasdaq composite more than 1% and supported the S&P 500. Lumentum manufactures photonic chips and optical transceivers used in high-bandwidth, low-power data-center interconnects.