FRM Handbook Ch 30: Hedge Fund Risk Management (Specific Risks and Transparency)
Book: Financial Risk Manager Handbook Plus Test Bank
Author: Philippe Jorion
ISBN: 978-0-470-90401-5
The second half of Chapter 30 covers risks that standard VaR misses. These are the risks that killed LTCM, blew up quant funds in August 2007, and still trip up investors who focus only on monthly NAV reports.
Agency risk: when the manager’s interests diverge
Hedge fund managers are agents for investors. Incentive fees (typically 20% of profits) make the manager long an option on fund performance. Option value rises with volatility. So the manager may want more risk than investors do.
Style drift is the quiet version. The manager slowly moves into markets or strategies not in the original mandate.
Mitigations:
- Managers should invest personal wealth in their own fund.
- High-water marks mean performance fees apply only to NAV above the previous peak. If NAV goes $100 → $130 → $120 → $140, the fee on the final year applies to $10, not $40.
- Independent risk oversight (not just prime broker monitoring).
High-water marks are imperfect. If the watermark is too high, the manager may close the fund and start fresh to reset the fee clock.
Prime brokers monitor risk too, but their incentive is protecting the loan, not the investor. A broker can force liquidation at distressed prices and still recover its collateral.
Liquidity and leverage risk
Leverage turns small mistakes into large losses. LTCM is the textbook case:
- 25:1 leverage ratio
- $125 billion in assets (four times the next largest fund)
- Positions in mostly liquid instruments, but at sizes that moved markets
- Lost $4.4 billion, or 92% of equity, in 1998
Liquidity risk hits both sides of the balance sheet:
Assets: Large positions have price impact. Small positions in thin markets have price impact too.
Liabilities: Funding from prime brokers can disappear. Margin calls force sales. Investor redemptions drain cash.
Funds manage this with lockup periods (average three months, up to five years), redemption notice periods (average 30 days), and gates that cap withdrawals to a fraction of NAV. In extremes, funds can suspend redemptions entirely.
Stale prices and the illusion of low risk
Monthly NAV reporting sounds clean. For illiquid instruments, it is often wrong.
If the last trade in a thinly traded bond happened mid-month, the end-of-month NAV uses a stale price. Two effects follow:
- Reported volatility is too low. Prices are smoothed averages, not end-of-period marks.
- Returns show positive autocorrelation. Part of this month’s move shows up next month too.
The math matters. With autocorrelation of 0.5, scaling monthly vol to annual using the square root of time understates true risk by about 18%. Longer horizons make it worse.
Beta estimates against market indices are also biased downward. The fix involves regressing on contemporaneous, lagged, and forward market returns. The sum of those betas is closer to true systematic risk.
Model risk and crowded trades
Leverage amplifies model errors. LTCM’s risk system underestimated the capital needed for its positions. Small assumption errors became existential ones at 25:1 leverage.
Crowded trade risk is the systemic version. When many leveraged funds hold similar positions, one fund’s forced liquidation pushes prices against everyone else. August 2007 quant fund losses fit this pattern: a large multistrategy fund liquidated equity positions to meet margin calls elsewhere, crushing equity market neutral portfolios on both long and short sides.
Stop-loss rules create similar dynamics. They are synthetic long options on volatility. When many traders hit stops at once, selling feeds on itself.
Counterparty risk and transparency
Leveraged funds pledge collateral to prime brokers through hypothecation. Brokers can rehypothecate that collateral to other parties. If the broker fails, investors may not recover their securities.
This is why counterparty risk at the prime broker level matters, not just market risk in the portfolio.
Transparency is the investor’s defense. Due diligence should cover:
- Strategy description and limits
- Leverage and concentration
- Liquidity terms (lockups, gates, notice periods)
- Risk reporting frequency and methodology
- Auditor quality and pricing sources
- Manager personal investment in the fund
Most funds disclose less than investors want. The chapter is honest that opacity is a feature of the industry, not a bug.
What stuck with me
Hedge fund risk is bank trading desk risk plus agency problems plus liquidity terms plus stale pricing. Standard VaR captures maybe half the picture.
The stale price section is underrated. A fund showing smooth monthly returns on illiquid assets may look low-risk when it is not. Always ask where the marks come from.
LTCM and August 2007 are old stories. Crowded trade risk and leverage-driven liquidation cascades keep repeating because the incentives do not change.
Previous: FRM Handbook Ch 30: Hedge Fund Risk Management (Hedge Fund Industry and Market Risks)
Next: After the FRM Handbook: What Actually Stuck