Will Apple be the third-largest company in the world by market cap on May 31?

Prediction markets put the probability at 93%: Will Apple be the third-largest company in the world by market cap on May 31. Currently, markets see this as likely (93% YES). Amazon's Big Rally Takes A Breather Just Short Of $3 Trillion Club.

What’s Happening

The race to determine whether Apple will rank as the third-largest company in the world by market cap on May 31 tightened this week as the top of the global leaderboard reshuffled around AI-driven valuations. Nvidia headed into its first-quarter fiscal 2027 earnings call on May 20 with a market cap of roughly $5.4 trillion, needing an 11.5% gain to breach the unprecedented $6 trillion threshold, even after a 5.7% pullback from its all-time closing high on May 14. That cushion has cemented Nvidia at #1, with Microsoft and Apple jockeying for the next two slots ahead of the month-end snapshot. [The Motley Fool, May 19]

The composition of the $3 trillion club remains the structural backdrop to the apple third-largest company in the world by market cap on may 31 question. As of mid-May, the cohort comprised Nvidia, Alphabet, Apple and Microsoft, with Amazon stalling just short after a 27% rally from early April to an intraday record of $278.56 on May 5, followed by a 3% pullback last week. Amazon's failure to close the gap leaves the top-three contest a function of relative moves among Microsoft, Alphabet and Apple rather than a fifth entrant. Historically, the last reshuffling of the top three occurred when Nvidia overtook Apple in mid-2024, with positional swaps typically resolving within single-digit percentage-point gaps. [Investor's Business Daily, May 18]

Private-market dynamics add an indirect pressure point on the public leaderboard heading into the apple third-largest company in the world by market cap on may 31 cutoff. SpaceX is tipped to IPO at a valuation above $1.5 trillion as soon as June, following its February merger with xAI at a combined $1.25 trillion, while OpenAI and Anthropic sit at $852 billion and $380 billion respectively. None enter the May 31 snapshot, but capital rotation toward AI-adjacent names continues to favor Nvidia and Microsoft over Apple at the margin. With roughly two weeks until the resolution date and Apple's third-place position carrying a multi-hundred-billion-dollar buffer over Alphabet, the configuration would require a sharp idiosyncratic drawdown to dislodge. [Forbes, May 14]

Traded on Polymarket — $59K Volume

Lower-volume market on Polymarket ($59K). Wider spreads expected — enter with limit orders and be aware of slippage risk. Currently 81c YES.