Largest Company end of May?

Resolution Criteria

This market will resolve to the largest company in the world by market cap on May 31, 2026, as of market close. The resolution source for this market will be a consensus of credible reporting.

NVIDIA is the overwhelmingly dominant outcome in prediction markets for the world's largest company by market capitalisation at the end of May 2026, with trading volume heavily concentrated on a single name. The remaining outcomes — including Apple, Microsoft, Alphabet, and others — attract only marginal interest. The market resolves on 31 May 2026 based on closing market capitalisation, using a consensus of credible financial reporting.

Market structure

The market spans 29 possible outcomes, covering the world's largest publicly traded companies by market capitalisation. Trading is extraordinarily concentrated on a single outcome, NVIDIA, with all other named contenders — Apple, Microsoft, Alphabet, Amazon, Tesla, Broadcom, and Saudi Aramco — attracting only negligible volume. Resolution is set for 31 May 2026 at market close, determined by a consensus of credible reporting on closing market capitalisation figures.

Background

The question of which company holds the largest market capitalisation globally has shifted dramatically over the past decade, with the top position passing between Apple, Microsoft, Saudi Aramco, and more recently NVIDIA. NVIDIA's ascent to the top of global rankings accelerated from 2023 onwards, driven by surging demand for its graphics processing units central to artificial intelligence infrastructure. The company briefly became the world's most valuable publicly traded firm in 2024, a position it has contested closely with Apple and Microsoft. This market reflects the extraordinary concentration of investor interest in AI-adjacent hardware at a moment when technology valuations remain sensitive to earnings cycles, export controls, and macroeconomic conditions.

Key factors

NVIDIA's position at the top of market capitalisation rankings depends substantially on continued investor confidence in AI infrastructure spending by cloud providers and enterprise customers. Any material slowdown in capital expenditure from major hyperscalers could compress GPU demand forecasts and affect valuation. US government export controls on advanced semiconductors — particularly restrictions on sales to China — represent a regulatory risk that has previously caused significant intraday moves in NVIDIA's share price. Apple's valuation is linked to iPhone upgrade cycles, services revenue growth, and any announcements related to its own AI hardware roadmap, which could narrow the gap. Microsoft and Alphabet are sensitive to cloud computing growth rates and their own AI product monetisation. Broader equity market conditions, interest rate expectations, and currency movements could shift the relative rankings across all named companies between now and 31 May 2026.

FAQ