What is LTV? Loan-to-Value Explained for Crypto Loans
What is LTV (loan-to-value)
LTV, or loan-to-value, is the ratio between the amount of a loan and the value of the collateral securing it, expressed as a percentage. A $400,000 mortgage on a $500,000 home is an 80% LTV. A $500,000 stablecoin loan against $1 million of pledged Bitcoin is a 50% LTV.
The number is one of the first things any secured lender looks at. The ratio tells you how much of the collateral's value the lender is willing to advance against, and how thick the cushion is between the loan balance and a loss for the lender if the borrower stops paying. Lower LTV means more cushion. Higher LTV means thinner protection and, usually, a higher interest rate to compensate.
How it works
The math is simple. LTV = outstanding loan amount ÷ collateral value × 100. The complications come from the moving parts: both the numerator (the loan balance) and the denominator (the collateral's market value) can change over the life of the loan, sometimes daily, sometimes by the second when the collateral is volatile crypto.
Consider a borrower who pledges 10 BTC at $60,000 each ($600,000 of collateral) and borrows $300,000 in stablecoins. Origination LTV: 50%. Then BTC drops to $48,000. The collateral is now worth $480,000. The loan didn't shrink. New LTV: 62.5%. Same loan, same collateral, different ratio.
That's why most lenders track three different LTVs.
Origination LTV. The ratio at the moment the loan opens. It's a one-time snapshot that sets initial sizing and pricing.
Operating LTV. The live ratio, recalculated as collateral prices move and as interest accrues to the loan balance. This is what risk teams watch.
Liquidation LTV (LLTV). The threshold at which the lender (or, in DeFi, any keeper) is allowed to seize and sell collateral to repay the loan. Cross it, and the position gets unwound.
Most lending dashboards visualize this as a stack of colored bands with the position's current LTV marked against them.
The gap between operating LTV and liquidation LTV is the borrower's headroom. It's also the lender's first line of defense against a sharp move in the underlying.
Why it matters
LTV is how lenders price risk and how borrowers size their position. Three things follow from the ratio.
Pricing. Higher LTV means more risk to the lender, so the rate goes up. A 50% LTV crypto loan and an 80% LTV crypto loan price differently and behave differently, even against identical collateral.
Liquidation distance. Volatile collateral needs more cushion. A car can lose 15% of its value over a year. Bitcoin can lose 15% in an afternoon. The same LTV that's prudent for an auto loan is reckless for a crypto loan, which is why institutional crypto-backed lending uses materially lower LTVs than mortgage or auto markets.
Capital efficiency. Borrowers want as much liquidity as possible from each unit of collateral. Lenders want enough cushion to survive a drawdown. The chosen LTV is the negotiated answer.
When LTV is mishandled, things break. The credit losses on US sub-prime mortgages in 2008 were fundamentally an LTV event. House prices fell, originations had been written at high LTVs against inflated valuations, and the cushion vanished. Crypto saw a smaller version of the same dynamic in 2022.
Where this shows up in institutional crypto-backed lending
In institutional crypto-backed lending, LTVs run conservative for a reason: collateral can move fast. Operating LTVs at most institutional desks sit closer to mortgage-origination territory than to the high LTVs typical in DeFi retail markets, because the collateral's volatility profile demands a wider gap between the loan amount and the liquidation threshold.
Two follow-on reads complete the picture: LTV vs LLTV: origination threshold vs liquidation trigger for how the trigger thresholds split, and Overcollateralization in institutional crypto-backed lending for why the loan amount sits well below the collateral value in the first place.