Skip to main content

Deal Terms

Weighted Average Anti-Dilution

Last updated

Quick Answer

The most common form of anti-dilution protection, adjusting an investor's conversion price based on both the new lower price and the number of shares issued.

Weighted average anti-dilution is the standard form of anti-dilution protection in VC deals. When a company raises a down round, weighted average anti-dilution adjusts the conversion price of existing preferred stock based on: how many shares were sold at the lower price AND what that lower price is. The formula weighs the impact, meaning a small down round with few shares issued has a modest adjustment, while a large down round with many shares issued has a bigger adjustment. Broad-based weighted average (BWAM) includes all outstanding shares in the calculation — the most founder-friendly variant. Narrow-based weighted average includes only preferred shares, making the adjustment more aggressive. Both are more founder-friendly than full ratchet (which resets the conversion price to the new low price regardless of volume).

Frequently Asked Questions

What is Weighted Average Anti-Dilution in venture capital?

Weighted average anti-dilution is the standard form of anti-dilution protection in VC deals. When a company raises a down round, weighted average anti-dilution adjusts the conversion price of existing preferred stock based on: how many shares were sold at the lower price AND what that lower price...

Why is Weighted Average Anti-Dilution important for startups?

Understanding Weighted Average Anti-Dilution is critical for founders navigating the fundraising process. It directly impacts deal terms, valuation, and the relationship between founders and investors.

What category does Weighted Average Anti-Dilution fall under in VC?

Weighted Average Anti-Dilution falls under the deal-terms category in venture capital. This area covers concepts related to the financial and legal terms that define investment agreements.

Newsletter

The VC Beast Brief

Join thousands of founders and investors. Every Tuesday.

VentureKit

Ready to launch your fund?

Build Your Fund Package