XO Market

Founded in January 2025 by CEO Ali Habbabeh and CTO Walid Al Habboul, XO Market is a permissionless conviction-market platform, dubbed the 'YouTube of prediction markets,' that lets anyone create, trade, and share markets on any verifiable outcome. Built on Celestia for data availability, it uses an adaptive LS-LMSR algorithmic market maker to keep even niche, user-created markets liquid, and leverages AI plus decentralized arbitration for outcome resolution. The company raised a $6M seed round in 2026 led by 20VC and Picus Capital, with participation from Coinbase Ventures, Ventures Together, Insiders, and Foreword Fund, following an earlier pre-seed from cyber•Fund and Delphi Ventures. XO Market has since surpassed $400M in total trading volume and migrated its liquidity hub to Coinbase's Base network.