Protocol for decentralised finance (DeFi) As part of its plans to access new markets and increase user activity, Trader Joe has announced its first expansion from Avalanche to the Ethereum ecosystem. On December 1, the decentralised trading platform announced its "multi-chain" expansion into Ethereum layer-2 scaling solution Arbitrum One, roughly a month after announcing its intention to expand to additional markets and ink new partnerships in the face of declining TVL and user activity in the third quarter.