According to PolynomialFi, Sky's USDS (USDS) is now fully integrated into Polynomial’s multi-collateral engine, allowing traders to use USDS as margin for long or short positions across more than 50 perpetual markets with fast execution speeds. This integration offers greater flexibility for crypto traders seeking to diversify collateral options and optimize margin strategies, potentially increasing USDS liquidity and utility within the DeFi derivatives sector (source: @PolynomialFi, June 19, 2025).