Why haircut matters
Haircuts protect lenders against price volatility, liquidity, valuation error, and liquidation costs between margin calls or enforcement. Larger haircuts mean less borrowing against the same asset.
How it is applied
A lender multiplies eligible collateral value by one minus the haircut to calculate lending value, then adjusts haircuts for asset quality, maturity, concentration, currency, liquidity, and market stress. A lender applies a percentage reduction to collateral market value when calculating borrowing capacity. The size reflects volatility, liquidity, credit, maturity, concentration, and liquidation time. Risk teams recalculate collateral and issue margin calls when market values or required haircuts change.
Portfolio example
Securities worth $10 million receive a 20% haircut, creating $8 million of recognized collateral value. A stressed haircut of 35% would reduce capacity to $6.5 million. Collateral worth 10 million with a 20% haircut supports 8 million of secured exposure. If its value falls to 9 million and the haircut rises to 30%, eligible value becomes 6.3 million. The borrower must provide 1.7 million more collateral or reduce the loan.
How to interpret it
A haircut is a risk buffer, not a forecasted loss. It can rise abruptly when volatility or liquidity worsens, forcing borrowers to post collateral or reduce exposure. A larger haircut means the lender recognizes less collateral value and the borrower receives less financing. Haircuts can be procyclical: they rise during stress, forcing deleveraging when asset prices are already falling. Comparisons require the same collateral, tenor, counterparty, and legal terms.
Limitations and common misconceptions
Historical volatility may understate gap risk, correlations can rise, and quoted prices may not be executable. Procyclical haircut increases can intensify deleveraging during market stress. A haircut is not a guaranteed loss buffer. Prices may gap beyond assumptions, liquidation can take longer, collateral can be correlated with the borrower, and legal enforcement can fail. Netting, substitution rights, wrong-way risk, and operational timing also affect actual recovery. Different counterparties can assign materially different haircuts to the same asset. Contract terms should specify valuation source, dispute process, thresholds, eligible replacement collateral, and settlement timing.
Sources and further reading
- Asset-Based LendingOffice of the Comptroller of the Currency
- Fundamentals of Credit AnalysisCFA Institute