According to Polynomial's official Twitter announcement, traders can now use ETH, ether.fi's weETH, SolvProtocol's SolvBTC, and Lido Finance's wstETH directly as collateral on the Polynomial platform. This update allows users to leverage their long-term holdings for margin trading while continuing to earn yield on these assets, enhancing capital efficiency and attracting yield-focused crypto traders. The integration of interest-bearing assets as collateral is expected to boost trading volumes and liquidity on Polynomial, making it a competitive choice among DeFi options platforms (Source: @PolynomialFi, Twitter).