SparkLend, the flagship lending protocol in the Spark ecosystem tied to Sky — the protocol formerly known as MakerDAO — crossed 600,000 ETH in deposits in mid-September 2026, setting an all-time high for the platform, according to protocol data.

The milestone marks a sharp acceleration in growth. SparkLend held 380,000 ETH in deposits in late April 2026. By mid-May, the figure had reached 516,000 ETH. Four months later, it pushed past the 600,000 ETH line.

How large is SparkLend's balance sheet?

Total market size — the value of all assets supplied to the platform — stands at $7.39 billion as of mid-September 2026. Total value locked, the standard DeFi metric measuring capital sitting in the protocol rather than lent out, is approaching $4.96 billion. Active loans total roughly $2.4 billion.

Whale activity accounts for a meaningful share of the expansion. Large holders funneled approximately 88,320 ETH into SparkLend over the six months leading up to September 2026, a concentration that cuts both ways: a small number of large deposits drove the growth, and a small number of exits could reverse it just as quickly.

What role does USDS borrowing play?

USDS borrowing on SparkLend has reached new highs, running between $800 million and $900 million. Unlike many DeFi lending markets where rates float freely with supply and demand, SparkLend sets governance-controlled rates for assets including USDS.

For Sky, the USDS borrowing figures are arguably the more strategic number. Borrowing at that scale shows SparkLend functioning as a distribution engine for the stablecoin rather than merely a passive parking spot for ETH — a direct channel pushing USDS into circulation through demand for leverage.

Why is the protocol narrowing its footprint?

SparkLend runs a deliberately constrained playbook. Its collateral set is narrow, limited to wstETH — a wrapped form of staked ETH — and previously rETH. The protocol also restricts high-leverage looping compared with peer platforms, limiting the risk profile that has burned users on more permissive venues.

The protocol fully deprecated its low-usage Gnosis Chain deployment on September 14, 2026, and now operates exclusively on Ethereum. The decision concentrates technical and operational exposure on a single chain, trading multi-chain reach for simplicity and liquidity depth.

What does the growth signal about DeFi sentiment?

Investors have been shifting toward conservative DeFi protocols following incidents affecting competitor platforms, and institutional participants show a broader preference for vetted, lower-risk lending options. SparkLend's governance-controlled rates, narrow collateral set and leverage restrictions position it squarely in that bucket.

The growth raises two structural questions for the quarters ahead. Whether whale deposits — roughly 88,320 ETH accumulated in six months — remain sticky as competing venues recover, and whether Ethereum-only concentration proves to be a strength or a single point of failure, will shape the protocol's trajectory into 2027.