AI stocks rise as Nvidia and Microsoft climb into earnings week — what investors watch next
Nvidia rose 1.7% and Microsoft gained 2.3% Tuesday as AI-linked stocks outperformed the broader market. S&P Global estimates capex by major tech firms jumped over $45 billion in 2025, with total spending expected to approach $500 billion in 2026. Microsoft unveiled its Maia 200 AI chip, set to launch in Iowa and Arizona data centers. Meta and Microsoft report earnings Wednesday, with investor focus on AI investment returns.