Collateral Haircuts Explainer
A collateral haircut is the percentage by which a lender or clearing system reduces an asset’s market value when calculating borrowing capacity. If securities worth one million dollars receive a 10 percent haircut, they support only nine hundred thousand dollars of exposure. The buffer protects against price declines and sale costs after a default.
Haircuts vary with volatility, liquidity, maturity, credit quality, currency, concentration, and how quickly the asset could be sold. Additional adjustments may apply when collateral and exposure are closely related or denominated differently. Systems recalculate values and require more collateral when prices fall or risk settings change.
A larger haircut lowers leverage and provides more protection to the secured party. For the pledgor, it ties up additional assets and raises funding cost. In calm markets, competitive pressure can push haircuts down; in stress, sudden increases can create margin calls and widespread demand for cash or high-quality collateral.
Haircuts are estimates, not guaranteed loss limits. Gaps, market closures, legal delays, and fire-sale discounts can exceed the buffer. Risk managers should combine transparent methodologies with concentration limits, frequent valuation, conservative liquidation periods, and stress tests that consider correlated declines and crowded collateral.
The haircut creates a buffer between collateral value and exposure.
Higher-risk assets usually receive larger reductions.
Larger discounts require more collateral for the same borrowing.
They protect the lender but raise the pledgor’s cost.
Haircuts may rise as prices fall and liquidity weakens.
Sudden calls can force asset sales.
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