What is power law in venture capital?
Power law is the mathematical distribution that describes venture fund returns: a small number of outlier investments produce the vast majority of fund returns. Peter Thiel popularised the framing in Zero to One (Chapter 7): “the biggest secret in venture capital is that the best investment in a successful fund equals or outperforms the entire rest of the fund combined.” Marc Andreessen and the a16z partnership have repeatedly emphasised the same dynamic in their published portfolio writeups.
The distribution — what it looks like
Empirical data from Sequoia, Andreessen Horowitz, Benchmark and other top-quartile funds shows roughly: 50% of investments lose money, 20-30% return capital plus modest gains, 15% return 3-10×, and 2-5% return 20×+ — the latter group drives 70-90% of total fund value. The shape is a long-tail (fat-tail) curve, not a bell.
How it compares — Pareto vs. normal distribution
A normal (bell-curve) distribution assumes outcomes cluster around an average. Power law violates that assumption: there is no meaningful “average” return because outliers dominate. The Pareto principle (80/20 rule) is a special case — but in venture, the concentration is typically more extreme (often 90/10 or 95/5).
Power law in the Turkish VC context
Turkish VC fund construction follows the same logic. A TRY 100M seed fund typically needs at least one portfolio company returning 20-50× to deliver a 2.5-3× MOIC to LPs. This shapes the “swing for the fences” mandate, the carry waterfall, and why investor side letters often allow super pro-rata participation in winners. CMB-regulated venture funds use the same math under a different regulatory wrapper.
Founder Do / Don’t
Do: understand your investor needs your company to be a top-decile outcome — incremental growth is not their business model. Frame fundraising conversations around path to outlier returns, not just survival.
Don’t: over-optimise for downside protection in early term-sheet negotiations. Investors take outlier-skewed risk; founders pushing too hard for downside protection (large preference stacks, ratchets) can break alignment with the power-law math the fund depends on.
Related: Hockey Stick Growth, Fund Returns, Carry (Carried Interest), IRR, MOIC, J-Curve, Unicorn.
Connected concepts: founder survival math via Default Alive vs Default Dead.