Questions: Collateral Valuation and Haircuts in Repo Markets

Question 1

A bond worth $100 has a 5% repo haircut. How much cash can the borrower receive, and what leverage ratio does this create on the borrower's equity?

• A. $105, creating 1:1 leverage — the haircut adds a safety premium to collateral value
• B. $95, creating approximately 20:1 leverage on the $5 equity cushion
• C. $50, creating 2:1 leverage — haircuts are symmetric around par value
• D. $100, creating unlimited leverage — the haircut is a fee, not a principal discount

Answer: (B)

A 5% haircut means the lender advances 95% of collateral value: $95 on a $100 bond. The borrower posts $100 of collateral and receives $95 of cash, keeping a $5 equity stake. That $5 of equity controls $100 of assets — leverage of 20:1. This amplification is why haircuts are so consequential: a small change in collateral value wipes out equity entirely, and a small increase in the haircut dramatically reduces the cash available.

Question 2

During a financial crisis, what happens to repo haircuts on risky assets, and why does this worsen the crisis rather than stabilize it?

• A. Haircuts fall, making credit cheaper and stabilizing asset prices
• B. Haircuts rise, forcing deleveraging that drives fire sales and further price declines
• C. Haircuts stabilize automatically because central banks set them countercyclically
• D. Haircuts rise but only affect new lending, leaving existing repo positions unchanged

Answer: (B)

Haircuts are procyclical: they rise sharply during crises precisely when lenders perceive higher price and liquidity risk. Borrowers who cannot post additional collateral are forced to sell assets immediately. When many levered institutions face higher haircuts simultaneously — because they all hold similar collateral — they all become forced sellers at once, depressing prices, which justifies still-higher haircuts: the haircut spiral. This is how localized credit stress becomes system-wide liquidity crisis.

Question 3

A haircut primarily protects the lender from the risk that the borrower might default on the repurchase obligation.

• T. True
• F. False

Answer: False

A haircut protects the lender from *collateral price risk* and *liquidation risk* — not directly from borrower default risk. If the borrower defaults, the lender already holds the collateral and sells it to recover the loan. The haircut ensures the sale proceeds will exceed the loan amount even after price declines during the liquidation period. Default risk per se is addressed by the right to seize and sell collateral; the haircut addresses whether that collateral will still be worth enough when it is sold.

Question 4

In calm markets, low repo haircuts are a sign of healthy, efficiently functioning financial markets.

• T. True
• F. False

Answer: False

Low haircuts in calm markets enable very high leverage, creating systemic fragility that is invisible until it unwinds. The conditions that make markets appear healthy — low volatility, liquid markets, stable prices — are exactly what allow haircuts to fall and leverage to build. When conditions reverse, this hidden leverage becomes the amplification mechanism for the crisis. Procyclically low haircuts are efficient at the micro level but dangerous at the macro level — this is a key reason the 2008 crisis was so severe.

Question 5

Explain the 'haircut spiral' mechanism. Why do rising haircuts during a crisis cause further price declines rather than simply reducing new borrowing?

Model answer: When haircuts rise, leveraged borrowers must post more collateral or repay part of the loan. Many cannot, so they sell assets to raise cash. When many institutions simultaneously face higher haircuts on similar collateral, they all become forced sellers at once. This drives asset prices down, which reduces collateral values and justifies still-higher haircuts, forcing more selling — a self-reinforcing cycle. The spiral transforms isolated credit stress into system-wide liquidity crisis through this feedback loop.

The spiral is self-reinforcing because haircuts respond endogenously to the prices they are causing to fall. Individual lenders acting rationally — demanding more protection as collateral becomes riskier — collectively produce an outcome that destroys the values they are trying to protect. In 2008, repo haircuts on mortgage-backed securities rose from 2–3% to 20–40% nearly overnight, forcing massive fire sales across asset classes as institutions sold their most liquid holdings to raise cash.