Cash Multiples VS IRRs in VC Funds
Fred wrote an interesting post today describing how to use IRR to analyze an investment opportunity. I thought I’d extend on his work to explain why IRR isn’t not a great way to think about VC funds.
Let’s say the Teachers’ Union of Springfield want to invest their pension fund into venture capital. They would be Limited Partners (LPs) in the fund. Springfield Teachers’ Union needs to be willing to tie up their capital for potentially a long period of time. Most funds are a 10 year commitment. Venture funds ask their LPs for their capital on an as-needed basis, so LPs don’t contribute all their money at the start of the fund. Instead, the the money goes in periodically over 10 years. But, LPs need to have enough liquid assets to contribute capital when requested at any given time.
Ok, given this background, lets look at the performance of two hypothetical venture funds: Montgomery Burns Capital (MBC) and Android’s Dungeon Seed Ventures (ADSV). Both funds are $30MM funds. MBC invests their money during three different years, and quickly returns the capital for a small profit in the subsequent years. By contrast, ADSV capital invests the entire fund in the first year and doesn’t return the capital until the tenth year of the fund, but the resulting return is a 3x on original investment. Here’s a table to illustrate the cash flows of the funds and resulting returns.

You can play with this spreadsheet here. Obviously these examples are oversimplified to make a point, but they reflect a very real phenomenon in evaluating venture fund performance
Montgomery Burns Capital returns 1.3x of Springfield’s capital at a higher (30%) IRR and Android’s Dungeon Seed Ventures returns 3x of Springfield’s capital at a lower IRR. So, which fund should Springfield Teachers’ Union invest in? Most people would say ADSV is the superior performing fund. LPs enter venture funds with the expectation that most of their capital commitment will be tied up for a long period of time. So, even though MBC cash flows free up the LPs capital for more time, most LPs would not be expecting this capital to be available and would need to invest it in highly liquid (low return) investments during that duration.
So, looking at IRR alone can be misleading when investing in a venture fund. There’s a very simple expression that sums up the lesson in this post, which a good friend of mine on the LP-side of the game told me: “You can’t eat IRR.”