For example, if their fund is $1B and they put $250M in Uber, then Uber's valuation goes 10x, so their portion is now worth $2.5B, more than the fund started wi

For example, if their fund is $1B and they put $250M in Uber, then Uber's valuation goes 10x, so their portion is now worth $2.5B, more than the fund started with. (Numbers made up for example.)