According to PolynomialFi, cbBTC holders on Polynomial can now access multi-collateral margin trading with yields reaching up to 65% APR, alongside additional $OP token rewards. This high-yield opportunity is notable for crypto traders seeking leveraged bitcoin exposure and enhanced returns on the Optimism network. The competitive APR and incentive structure may drive increased cbBTC liquidity and trading volumes, potentially impacting cbBTC and OP token prices as well as broader DeFi yield strategies (source: PolynomialFi Twitter, June 5, 2025).