Puffer, a liquidity re-pledge protocol, said on Tuesday that it had raised $18 million in a Series A round led by Brevan Howard Digital and Electric Capital, with investors including Coinbase Ventures, Kraken Ventures, Lemniscap, Franklin Templeton, Fidelity, Mechanism, Lightspeed Faction, Consensys, Animoca and GSR. The new round of funds will be used to help launch Puffer's mainnet. Previously, Puffer raised $5.5 million in a round co-led by Lemniscap and Lightspeed Faction.