Spark, the lending protocol spun out of the Sky ecosystem formerly known as MakerDAO, increased its active loans roughly 190% over the past 180 days to approximately $2.9 billion, making it the fastest-growing lender among top-10 DeFi lending protocols during that period, according to platform data.

The growth stands out against a contracting market. The broader DeFi lending sector shrank by about 30% over the same 180-day window, which makes Spark's expansion a story of market share capture rather than passive participation in an inflating sector.

SparkLend's share of outstanding loans among major venues rose to 10.4% in Q2 2026, up from 4.3% in Q1. Ethereum borrowing on the platform increased 247% since March 2026. The single largest driver was USDS borrowing, which grew from $188 million to $917 million and accounted for nearly half of the total increase in loans.

The deposit side scaled alongside credit. Total value locked in SparkLend reached roughly $5 billion, with deposits climbing to $5.03 billion in Q2, a 69% quarter-over-quarter jump. The total market size of supplied assets on Ethereum stood at $7.39 billion as of mid-September 2026.

Revenue followed the balance sheet. SparkLend posted net income of approximately $3.3 million for Q2, with distribution rewards tied to USDS savings products contributing $4.88 million — a 43% increase from the prior quarter.

Why the growth concentrated at Spark

Three operational factors underpin the expansion. First, Spark offers competitive stablecoin borrowing rates, which the protocol can sustain because USDS is native to the Sky ecosystem. Competitors that rely on third-party stablecoins face higher funding costs and cannot easily match those rates.

Second, the Spark Liquidity Layer (SLL) provides deep liquidity that functions as an institutional-grade backbone for the platform.

Third, Spark has deliberately courted institutional borrowers. The protocol allocated $210 million specifically for BTC-collateralized loans, of which $150 million has already been deployed at approximately 148% collateralization. That leaves $60 million in unused capacity as a buffer for further institutional growth.

The institutional pivot addresses a defined market opportunity. The off-chain crypto lending market sits at roughly $33 billion, and much of that capital has been searching for on-chain alternatives since the collapses of centralized lenders Genesis, BlockFi and Celsius. Spark's BTC-backed allocation positions it to absorb a portion of that demand with transparent, over-collateralized terms.

A curated fork with its own risk stack

Technically, SparkLend is a curated fork of Aave V3. The protocol inherits Aave's battle-tested smart contract architecture while layering on its own credit parameters and risk frameworks. That lineage reduces smart contract risk relative to a novel deployment, while still giving Spark control over collateral factors, rate curves and asset listings.

The protocol has also narrowed its operational footprint. Spark announced plans to deprecate its deployment on Gnosis Chain and will focus exclusively on Ethereum, consolidating liquidity and engineering attention on a single network rather than spreading resources across chains.

What it means for market structure

Spark's numbers signal a concentration shift in DeFi lending. In a quarter when the sector's total outstanding credit fell by nearly a third, one venue more than tripled its Ethereum borrowings and doubled its market share. If the remaining $60 million of the BTC-backed allocation deploys and USDS borrowing continues at its recent pace, Spark enters the next quarter with clear runway — and competitors that depend on third-party stablecoin liquidity will face a funding-cost disadvantage that compounds as the gap widens.