DeFi lending lets you borrow stablecoins or other assets using your crypto as collateral — without selling the underlying asset. This is useful for accessing liquidity while maintaining price exposure. Here's how it works and the risks involved.
The Core Use Case
You hold 10 SOL at $200 each = $2,000. You need $500 for expenses but don't want to sell your SOL (you expect it to go higher, or you don't want a taxable event).
You deposit your SOL into a lending protocol as collateral and borrow $500 USDC against it. You pay interest on the USDC loan. When you're ready, you repay the $500 USDC + interest and reclaim your SOL.
You get liquidity without triggering a sale. The trade-off: if SOL drops significantly, your collateral may be worth less than your loan and you get liquidated.
Key Concepts
Loan-to-Value (LTV) — The ratio of your loan to your collateral value. If you deposit $1,000 of SOL and borrow $600 USDC, your LTV is 60%.
Maximum LTV — How much you can borrow relative to collateral. Typically 65–80% for volatile assets, higher for stablecoins.
Liquidation threshold — The LTV at which your position is liquidated. Usually a few percentage points above max LTV. If your position hits this threshold, liquidators close it, you lose collateral.
Health factor — A normalized version of LTV used by some protocols (Aave). >1 = healthy, <1 = liquidatable.
Utilization rate — What percentage of a lending pool's supply is borrowed. High utilization drives up interest rates automatically, incentivizing more deposits.
Solana Lending Protocols in 2026
Kamino Finance — The largest Solana lending protocol by TVL. Supports SOL, mSOL, jitoSOL, USDC, USDT, ETH, wBTC as collateral/borrow assets. Clean interface, good liquidation parameters.
Drift Protocol — Spot lending integrated with perpetuals. You can borrow against your collateral to fund trades on Drift's DEX.
Marginfi — Known for its points program that attracted significant TVL in 2024. Solid core lending product.
Solend — One of the earliest Solana lending protocols. Mature codebase, multiple isolated pools for different risk profiles.
Base/Ethereum Lending
Aave — The dominant EVM lending protocol. Available on Base, Ethereum L1, Arbitrum, Optimism. Highly audited, battle-tested with years of TVL. The default choice for EVM lending.
Compound — Another pioneer. Slightly different interest rate model, well-audited.
For $SOVAI holders: staked $SOVAI earns real yield from swap fees. If you want to leverage your SOVAI exposure without selling, check whether lending protocols list SOVAI as collateral after mainnet launch.
Interest Rate Dynamics
DeFi lending uses algorithmic interest rates that adjust with utilization:
- Low utilization = low borrow rates (protocol wants to attract borrowers)
- High utilization = high borrow rates (protocol protects lender liquidity)
USDC borrow rates on Solana in 2026 range from 2–15% APY depending on utilization. Stablecoin borrow rates track the broader yield environment.
Safe Borrowing Practices
Keep LTV below 50% — This gives you a 15–30% cushion before liquidation, even on a sharp price drop.
Set price alerts — Set an alert at 70% of your liquidation price. This gives you time to add collateral or repay before liquidation.
Borrow in the same asset — Borrowing USDC against SOL creates risk if SOL falls. Borrowing SOL against SOL (for yield strategies) eliminates directional risk.
Use isolated pools for risky collateral — Some protocols offer isolated markets where risk is contained to specific asset pairs, protecting the main pool.
Borrow for Yield (Loop)
Advanced users use lending to create "looping" or leveraged yield positions:
- Deposit stSOL (liquid staked SOL) as collateral
- Borrow USDC against it
- Buy more SOL, stake it, get more stSOL
- Repeat
This amplifies your staking yield exposure but also amplifies liquidation risk. Only appropriate if you understand the full risk and can maintain the position actively.