The Fund

You run the firm. Five portfolio managers, each better at their own strategy than you will ever be, and two levers: how much risk each of them gets, and how big the fund is allowed to become. Every quarter you split a hundred units of risk between them — and a sixth bucket, capital returned to investors, which is the one that decides whether any of this still works in three years. Alpha decays with size: each pod has a capacity, and past it the returns simply stop being there. Meanwhile money arrives chasing your last good quarter, which is precisely when the strategy that earned it has run out of room. Starve a PM of risk and they leave, and their record leaves with them. Give investors a drawdown and they redeem into your worst quarter. The job is holding a business and a product that want opposite things.

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AUMAssets under management — the business, and what the fees are charged on. It is also the thing quietly destroying your returns, which is the tension the whole job lives in.

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Net returnCumulative return to investors after fees — the product. This is what you are ultimately judged on, and it gets harder to produce with every billion you accept.

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Investor patienceHow long your investors will sit through a bad run. Drawdowns burn it, consistency rebuilds it. Zero and the redemption queue closes the fund.

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TalentYour PMs' willingness to stay. Starve someone of risk for long enough and they leave — and you cannot re-hire their record. Zero and the firm is a shell with a brand.

Your product is returns. Your business is assets. They want opposite things.