VC & PE Glossary
What Is Power Law?
Updated
Definition
Power law describes the return distribution in venture capital where a small number of investments generate the vast majority of fund profits, while most deals return little or zero.
Useful for: Founders, Investors
Power law captures how venture outcomes skew heavily: returns concentrate in a few exceptional companies rather than distributing evenly across a fund’s portfolio.
How it works
Empirical VC fund data shows top-decile investments often produce multiples that dwarf the rest of the book. A fund might write off or modestly return on half its companies while one exit returns 50x and carries the fund. That shape drives portfolio construction—enough bets, enough ownership, enough follow-on in winners.
Founders feel power law in fundraising: investors ask whether the business can be “fund returner” scale for their fund size, not merely profitable. Small outcomes may not move DPI for large funds even if founders succeed personally.
Why it matters
- Founders: Position TAM and ambition credibly; power-law investors pass on good small businesses seeking venture-scale capital.
- Investors: Fund strategy must match power-law reality—reserves and ownership in winners matter more than minimizing loss counts.
Common mistake
Assuming disciplined execution alone guarantees venture-scale returns. Power law sectors reward extreme upside scenarios; median outcomes underperform cost of capital for many funds.
Related ideas
See portfolio theory (VC), loss ratio, and spray and pray.
Common questions
Short answers for founders, LPs, and operators