Solana lending protocol Jupiter launched Lend v2 on Monday, letting deposits and borrowed positions double as trading liquidity so the same capital earns lending interest and a share of swap fees. The optional Smart Collateral and Smart Debt features raise yields and cut borrowing costs, but only if traders route enough volume through the new pools, and any loss from a stablecoin depeg falls on collateral suppliers rather than borrowers.
Jupiter, Solana's decentralized-lending giant, rolled out its Lend version 2 product on Monday, letting deposits and borrowed positions act as trading liquidity at the same time. The same dollar can now earn lending interest and a share of swap fees at once, instead of sitting idle between loans.
The platform's lending arm, Jupiter Lend, holds about $1.9 billion in deposits and generated $1.6 million in fees over the past 30 days, roughly 1% a year on that capital before any split with the protocol, according to DefiLlama data. Active loans stand at $822.7 million, having moved between $600 million and $900 million since September, per Token Terminal data, and both have slipped over the past month.
Smart Collateral and Smart Debt
Lend v2 introduces two optional features. Smart Collateral lets a deposit of USDC, USDT, SOL or JupSOL pair automatically into a correlated liquidity pool, so the position earns loan yield, trading fees and, where applicable, staking rewards at once. Smart Debt applies the same pairing to borrowed assets, so fees generated by the debt position offset the cost of the loan. Users who want ordinary lending can ignore both.
The extra yield hinges on swap flow
That extra yield exists only if traders swap through the new pools. Jupiter runs Solana's largest swap router, the software most wallets and apps use to find the best price, and also owns pools that need that flow. The company told CoinDesk its router does not favor its own vaults and sends swaps wherever the price is best.
Jupiter's chief operating officer, Kash Dhanda, said "There's been a wall between the two primary ways people earn APY onchain", referring to lending and supplying liquidity to exchanges.
Depeg risk falls unevenly
Margin is valued using primary market oracles, Jupiter said, so a temporary price wobble on an exchange does not trigger anything, and a position liquidates once its loan-to-value ratio passes the threshold. On the debt side, a borrower is protected: someone borrowing $100 split between USDC and USDT would still owe $100 if one depegged, since the pool rebalances into whichever asset held its value.
Collateral suppliers get no such protection and carry the loss on both assets if either breaks. That is why Jupiter confined the design to correlated pairs — stablecoins against each other, and SOL against its staked versions — rather than volatile assets.
Jupiter expects a mix of new loans and migrated positions, without giving a target or a cap. Its loan book has not grown in a year, and the next 30 days of active loans will show whether yield was what held it back.
Source: CoinDesk
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