Largest Company end of December 2026? is a active prediction market event on Polymarket with 28 markets, $1.2M total volume, and $428.2K in liquidity. Key markets: Will Microsoft be the largest company in the world by market cap on December 31?; Will Alphabet be the largest company in the world by market cap on December 31?; Will Saudi Aramco be the largest company in the world by market cap on December 31?.