• Vault deposits reportedly exceed $10 billion, up from about $4 billion at the start of 2025 (Financial Times, via CoinDesk).
• Curators pick strategies, set risk limits and collect fees, so the manager function is where regulatory exposure is likely to sit.
• Headline yields of 3% to 10% (20%+ for riskier strategies) depend on collateral that can be illiquid tokens, crypto-backed stablecoins or tokenized private credit.
• Two Prime's Pareto vault pairs a 1.5% to 2% yield target with roughly $10 million of first-loss capital and a 5 WBTC minimum.
• Depositors should read the collateral list and the curator's loss-absorption terms before the yield figure.

Crypto lending vaults have become a $10 billion-plus pool of onchain deposits, and regulators have started asking who is responsible for the money inside them. The growth is reported; the rulebook is not written. The useful reading is not the deposit total but the structure underneath it: managers called curators, collateral of uneven quality, and yields that only mean something once you know what backs them.

Why the $10 billion figure matters

Deposits in crypto lending vaults now exceed $10 billion, against roughly $4 billion at the start of 2025, according to Financial Times figures cited by CoinDesk on 19 October 2026. That is about two and a half times in under two years, enough to turn a niche DeFi wrapper into a funding channel for fintech companies, digital asset treasury businesses and hedge funds, the main depositors CoinDesk names. The total is a secondary-sourced aggregate; its methodology sits with the FT and has not been independently verified here.

What curators actually do

Each vault is run by a curator, which CoinDesk describes as effectively an investment manager: it picks lending strategies, sets risk limits and collects fees. Typical returns run about 3% to 10%, with riskier strategies reaching 20% or more, per CoinDesk. The operative question for depositors is the collateral behind the yield, because loans may be backed by illiquid tokens, crypto-backed stablecoins or tokenized private credit, and automatic liquidations can deepen a market downturn.

Two Prime shows the institutional template

Two Prime, a bitcoin-backed lender, launched a bitcoin vault on Pareto in September 2026 targeting annual yields of 1.5% to 2%, per CoinDesk. The minimum deposit is 5 WBTC, and Two Prime has committed roughly $10 million of its own capital to absorb initial losses. Those terms resemble a senior-tranche structure: low yield, first-loss capital from the manager, and a ticket size that screens out retail. This is the reported design; loss-absorption mechanics should be checked against the vault's own documentation.

Regulators ask whether existing rules apply

CoinDesk reports the SEC has raised questions about vaults that hold securities, and European regulators have proposed oversight of intermediaries that provide access to DeFi. Neither is a finished rule; the open question is whether existing frameworks should apply to vaults. In our reading, exposure is most likely to attach to the curator function, since that is where discretion over strategy and fees sits. Watch for guidance that names the responsible party in a vault.

For treasury and risk teams, the takeaway is practical: treat a vault deposit as credit exposure to its collateral and its curator, not as a savings rate. Ask for the collateral list, the liquidation rules, the pricing source and the size of any first-loss capital before comparing yields across vaults.