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Alphabet shares fell 6.8% on Monday, the steepest one-day drop since March 2025, after the resignations of three senior AI executives over the past three weeks shook investor confidence in the company's Gemini roadmap.
Elon Musk's stake in SpaceX has crossed $1 trillion after the company's latest secondary-market valuation. According to a CNBC review, Google's co-founders, Founders Fund and Fidelity rank among the largest billionaire holders. The company's valuation is more than double its level a year ago.
Microsoft, Meta and Alphabet are draining cash reserves and turning to debt markets to fund their massive data-centre buildouts, forcing equity investors to track corporate bond spreads and interest-rate sensitivity for the first time in years. Strategists at Bank of America and Citi warn the AI capex cycle now ties Big Tech equity valuations to long-term rates.