Risk Management: Gross/Net Exposure & Drawdown Control

The previous chapters covered strategy and structure. This chapter covers the specific numbers a hedge fund's own risk management actually watches day to day — genuinely different metrics from a standard, unlevered portfolio.

Gross exposure and net exposure — two different, both essential, numbers

Gross exposure = total long positions + total short positions (both counted as positive) — a measure of total activity and leverage in the book. Net exposure = total long positions − total short positions — a measure of directional market exposure.

Worked example: a fund has $150M of long positions and $100M of short positions, on $100M of capital.

• Gross exposure = $150M + $100M = $250M, or 250% of capital — a real measure of how much total leveraged activity the fund is running.
• Net exposure = $150M − $100M = $50M, or 50% of capital — meaning the fund behaves, directionally, roughly like a portfolio that's 50% long the market, despite running $250M of gross positions.

A fund can have very high gross exposure (lots of leveraged long and short positions) while keeping net exposure low or even zero (a genuinely market-neutral book, Finance 101's diversification logic taken to an extreme) — which is exactly why both numbers are reported separately, never collapsed into one; they answer two different real risk questions.

Why net exposure alone can be misleading

A fund with 50% net exposure built from $150M long and $100M short (250% gross, per the example above) carries meaningfully more real risk — more moving parts, more positions that can individually go wrong, more financing and margin complexity — than a fund with the same 50% net exposure built from simply $50M long and $0 short (50% gross). Two funds, identical net exposure, genuinely different real risk profiles — precisely why a sophisticated allocator always asks for both numbers, never just one.

Drawdown — the number that matters most to an actual investor living through it

Drawdown measures the decline from a fund's historical peak value to its current value — maximum drawdown is the single largest peak-to-trough decline the fund has ever experienced. This is a genuinely different, and to many real investors more emotionally and practically relevant, measure than volatility or Sharpe ratio (Finance 101's Asset Management chapter) — it answers the concrete question "what's the worst it's actually ever gotten," not just a statistical estimate of typical variability.

Worked example: a fund's value grows from $100M to a peak of $140M, then falls to $105M before recovering. Drawdown at the low point = ($140M − $105M) ÷ $140M = 25% — a real, lived experience for any investor who held through that entire decline, genuinely different information from the fund's average annual return over the same period, which could look perfectly respectable despite that 25% peak-to-trough decline sitting inside it.

Why real hedge fund risk management leads with these specific numbers

Gross exposure, net exposure, and drawdown together tell a real allocator something volatility and Sharpe ratio alone can't: how much leveraged activity is really happening, which direction the fund is actually positioned, and the worst real outcome an investor has actually had to live through — the genuine, practical risk picture underneath any fund's headline return numbers.