Polymarket has launched its own stablecoin, Polymarket USD, backed 1:1 by native USDC, replacing the previously used USDC.e on its platform. This move does not affect the demand for USDC, as the underlying reserve asset remains Circle's USDC. The change primarily alters the user interface and platform control, without reducing USDC's market cap. The introduction of Polymarket USD allows the platform to manage collateral design and product architecture more effectively, while eliminating reliance on bridged assets like USDC.e. This shift highlights the growing trend of platforms issuing their own tokens backed by USDC, which may increase demand for USDC indirectly, despite not being immediately visible at the surface level.