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

Prediction markets put the probability at 15%: Will Apple be the third-largest company in the world by market cap on August 31. Currently, markets see this as unlikely (15% YES). As of August 2025, Apple is the third-largest company in the world, coming after Microsoft and Nvidia, and followed by Amazon and Alphabet (Google).

What’s Happening

As of August 2025, Apple held the position of the world’s third-largest company by market cap, trailing only Microsoft and Nvidia, with a valuation of $3.164 trillion at that time [FOREX.com US, Feb 05]. However, the competitive landscape has shifted dramatically by mid-2026. Data from April 2026 shows Nvidia leading at $4.53 trillion, Apple in second place at $4.02 trillion, and Alphabet closely following at $3.78 trillion, with Microsoft dropping to fourth at $3.59 trillion [Global Finance, Apr 01]. This volatile ranking underscores the core question for the market: whether Apple can maintain its position as the third-largest company in the world by market cap on August 31, a scenario currently priced at just 15% probability.

The primary risk to Apple’s standing is the surging valuation of Alphabet, which has closed the gap to roughly $236 billion as of the latest quarterly data. A recent Motley Fool analysis from June 3, 2026 confirms that Nvidia remains the largest company, but it lists Apple and Alphabet as rounding out the top three, omitting Microsoft entirely from that tier [The Motley Fool, Jun 03]. The market’s 85% NO probability reflects the consensus that Alphabet’s momentum in AI-driven advertising revenue will likely push its market cap past Apple’s before the August 31 deadline. Historical precedent supports this caution: in late 2024, Apple briefly lost its top spot to Nvidia, and the subsequent rotation among mega-cap tech names has been rapid and persistent.

Looking ahead, the decisive factors will be Apple’s upcoming earnings report for the June quarter, typically released in late July, and Alphabet’s corresponding figures. Apple’s market cap has shown sensitivity to iPhone sales guidance and services growth, while Alphabet’s valuation has been buoyed by cloud computing and AI infrastructure spending. If Alphabet’s market cap surpasses Apple’s by even a fraction—given the current $236 billion gap—the probability of a YES outcome would rise sharply. Conversely, a strong Apple earnings beat could solidify its position. The last time Apple fell to fourth place was in January 2024, when Microsoft overtook it, and the stock took over six months to recover that rank, a timeline that makes the current 15% probability a rational assessment of the remaining two-month window [Marketing91, Jun 06].

Traded on Polymarket — $52K Volume

Lower-volume market on Polymarket ($52K). Wider spreads expected — enter with limit orders and be aware of slippage risk. Currently 12c YES.