BitGo Rolls Out Spark Savings, Letting Institutions Earn Stablecoin Yield Within Regulated Custody

BitGo Bank & Trust is extending regulated custody into decentralized credit markets. The firm said on June 9 it launched Spark Savings, linking BitGo's custody platform to Spark's onchain lending ecosystem so institutional clients can pursue stablecoin yield without moving assets out of custody. Under the offering, eligible BitGo clients can deploy USDC, USDT and USDS into Spark's savings protocol. BitGo said the main appeal is operational: assets remain inside BitGo's custody environment while accessing yield opportunities on Spark. The integration was developed in partnership with Narval, which connects BitGo's infrastructure with Spark's onchain products. Spark's scale is sizable. The protocol ended May 2026 with about $6.4 billion in its Savings product, while SparkLend—its separate lending arm—held roughly $3.4 billion in assets over the same period. BitGo is also a major institutional custodian. At the time of its NYSE IPO in January 2026, the company reported about $104 billion in assets under custody and more than 1,500 institutional clients. CEO Mike Belshe has said operational security is central to BitGo's approach to bringing institutional capital into decentralized finance. Spark CEO Sam MacPherson has highlighted governance and security frameworks as key drivers of adoption. Spark operates as a subDAO of Sky, the protocol formerly known as MakerDAO, following MakerDAO's broader restructuring into specialized units. Spark focuses on structured access to stablecoin- and ETH-denominated credit markets. Its product lineup includes Spark Savings for yield generation, SparkLend for borrowing and lending, and the Spark Liquidity Layer aimed at improving capital efficiency. USDS, one of the stablecoins supported by Spark Savings, is the third-largest stablecoin by market capitalization at about $8.7 billion. BitGo said support for USDS alongside USDC and USDT gives institutions flexibility to deploy the stablecoin that best matches their treasury management needs.