Chainlink Unlocks DeFi Lending for Coinbase Tokenized Stocks on Base

Chainlink has introduced price feeds for four Coinbase tokenized stocks on Base, enabling DeFi protocols to assess NVDAc, METAc, AAPLc, and GOOGLc as collateral. Each B20 token represents an interest in a U.S.-listed share held through a regulated custody structure.

The Chainlink Data Feeds provide continuous valuations for the four stocks, allowing lending protocols to manage borrowing limits, loan health, and liquidations. The feeds are available on Base, where Coinbase launched the four stocks on August 24.

According to Chainlink's documentation, each feed reports the total return value of the corresponding B20 token, combining the underlying stock's market price with a multiplier taken from Coinbase's on-chain oracle registry. This allows the reported value to account for changes in the deposit ratio due to dividends being reinvested in additional shares.

Chainlink advises developers to verify addresses instead of relying only on ticker symbols, which can be copied by unrelated token issuers. The company also recommends setting suitable safeguards and checking Base's layer-2 sequencer status before protocols rely on a valuation for borrowing or liquidation.