In 2023, the main hedge fund at billionaire Dmitry Balyasny’s eponymous firm notched a gross return of 15.2%. Investors walked away with a gain of just 2.8% - the rest they paid in fees. That parceling out of costs is one of the most coveted perks of running a multistrategy hedge fund. Investors are so eager to pony up money that they effectively write a blank check, agreeing to cover just about any expense managers deem reasonable, in good times and bad. The term for that: Passthrough fees.