According to the source, elevated USDC lending rates available to Coinbase users were driven by a temporary Boost offered by DeFi lender Morpho, indicating the move was incentive-based rather than a broad market repricing. According to the source, the use of the term temporary signals that the higher USDC yields may not persist once the Boost concludes, making the rate spike more of a short-lived opportunity than a structural change. According to the source, traders focused on USDC carry and lending strategies should monitor Morpho’s Boost status and Coinbase USDC rate updates closely to manage reversion risk and short-term yield opportunities.