Meaning
Risk management framework applies a percentage discount to the market value of an asset when it is used as collateral. The haircut valuation model accounts for the potential decline in the price of an asset before it can be liquidated during a default. It establishes the actual lending value of a security regardless of its current trading price.
Liquidity Buffer
Determining the size of the discount depends on the historical volatility and the trading volume of the specific security. A haircut valuation model creates a safety margin that protects the lender from sudden market crashes or thin trading periods. Assets that are difficult to sell quickly receive a much larger discount than cash or government bonds.
Margin Calculation
Financial institutions use these discounts to set the amount of credit they will extend to a borrower. When the haircut valuation model is applied to a portfolio, it reduces the total borrowing capacity of the investor to a level that the bank considers safe. This calculation happens daily to ensure that the collateral still covers the outstanding loan.
Asset Quality
High quality instruments like treasury bills require very small adjustments compared to speculative stocks or corporate bonds. Using a haircut valuation model ensures that the lender is not overexposed to high risk assets that might become worthless in a crisis. The model stops being useful if the entire market for a specific asset class ceases to function entirely.