Mantle (MNT)

An Ethereum layer-2 rollup rebuilding itself around institutional real-world-asset infrastructure — tokenized equities, an mETH liquid-staking arm, and a fast-growing stablecoin base — rather than retail DeFi speculation. September brought native issuance of Paxos's USDG stablecoin and continued build-out of on-chain yield products with regulated partners.