Spark allocates $210M for institutional loans backed by BTC with Anchorage Digital
The DeFi lending protocol is bridging decentralized liquidity with regulated custody, and institutions are lining up to borrow against their Bitcoin
Spark, the lending arm of the Sky ecosystem (the protocol formerly known as MakerDAO), has carved out a $210 million allocation for institutional loans collateralized by Bitcoin and custodied through Anchorage Digital. The partnership pairs DeFi’s capital efficiency with the kind of regulated infrastructure that makes institutional compliance teams sleep at night.
Three institutional counterparties have already put the channel to work, borrowing $150 million in USDC against $222 million worth of BTC. That works out to a collateralization rate of roughly 148%, meaning borrowers are posting nearly $1.50 in Bitcoin for every dollar they take out.
How the plumbing works
The setup relies on Anchorage’s Atlas platform, which serves as the collateral agent in what amounts to a tri-party lending arrangement. It monitors loan-to-value ratios, processes payments, and handles margin calls and liquidations when collateral values dip too far.
The key innovation is that borrowers don’t need to move their Bitcoin fully on-chain to access Spark’s liquidity pools. Instead, BTC sits in Anchorage’s regulated custody while Spark provides the stablecoin lending power.
To sharpen the risk management layer further, Spark integrated RedStone oracles around mid-June 2026. These oracles pipe real-time LTV data for the Anchorage-held collateral directly on-chain, giving the protocol and its stakeholders continuous visibility into how healthy these loans actually are.
The news moving money, markets, and the world—before your day starts.
Daily. Free. Join 34,000+ readers across crypto, finance, and policy.
Growth trajectory tells the story
By the end of Q2 2026, Anchorage’s allocation within Spark’s overall lending book had grown by approximately 70%, reaching around $260 million.
The Anchorage channel has also proven to be the highest-yielding segment in Spark’s portfolio, generating returns of around 6.5%.
This growth is happening against the backdrop of an off-chain crypto-backed lending market estimated at $33 billion.
Why institutions care
Anchorage Digital is a federally chartered digital asset bank, which means it operates under a regulatory framework that institutional borrowers and their lawyers can actually recognize. By routing BTC collateral through Anchorage rather than requiring full on-chain deposits, Spark essentially lets institutions keep one foot in traditional finance’s compliance universe while tapping into decentralized liquidity on the other side.