Polymarket – the leading on-chain prediction market – is rolling out its biggest infrastructure upgrade since launch, including a complete order book rebuild and the debut of its own stablecoin: Polymarket USD.
The upgrade will be deployed gradually over the next few weeks. Key changes: new trading engine for faster order matching, lower gas fees, and full smart contract upgrades. All open orders will be canceled during the transition (users will receive advance notice).
Polymarket USD will replace USDC.e as the primary collateral asset. It is backed 1:1 by USDC, bringing greater transparency and reducing reliance on bridged assets. Advanced traders and bots will need to update their SDKs and use “wrap” functions to convert USDC/USDC.e into Polymarket USD.
This move transforms Polymarket from a pure prediction market into a full-fledged decentralized exchange model – a major step toward competing at scale in the DeFi space and attracting more institutional and global capital.
