United Kingdom, Oct. 29 -- Microsoft and Apple have reached a market cap of $4 trillion each.

The tech giants both surged passed the landmark market capitalisation on Tuesday (28.10.25), cementing their dominance at the top of global equity markets and underscoring investor confidence in their long-term growth.

The milestone comes as Nvidia remains the world's most valuable company at over $4.6 trillion, buoyed by demand for AI hardware.

Microsoft previously hit $4 trillion in July, but the renewed rise reflects momentum around its expanding stake in OpenAI, while Apple's climb has been powered by record-breaking iPhone 17 sales.

Microsoft shares jumped nearly three per cent after the company finalised its 27 per cent equity position ...