Anti-Dilution Provisions

The Down Round Problem

Venture Capital involves investing in high-risk startups with the expectation of rapid growth. Ideally, every subsequent funding round happens at a higher valuation than the last (an "Up Round"). However, if a company struggles or macroeconomic conditions worsen, they may be forced to raise capital at a lower valuation than their previous round. This is a "Down Round."

Without protection, a down round severely punishes early investors, instantly destroying the paper value of their equity. To mitigate this, Preferred Stock almost always carries Anti-Dilution provisions.

1. Full Ratchet (The Punitive Mechanism)

A Full Ratchet is the most draconian form of anti-dilution protection. If a company issues new shares at a price lower than what an early investor paid, the Full Ratchet retroactively adjusts the early investor's conversion price to match the new, lowest price exactly.

Mechanics: If Investor A bought Series A shares at $10.00, and the company later issues Series B shares at $5.00, Investor A's conversion price is reset to $5.00. This effectively doubles their number of common shares upon conversion, causing massive, unrecoverable dilution for the founders and employees.

Note: Full Ratchets are rare in healthy venture ecosystems and are usually only seen in distressed situations or predatory term sheets.

2. Weighted Average (The Standard Mechanism)

The Weighted Average method is much more common and fairer. It adjusts the early investor's conversion price downward, but it takes into account not just the price of the new down round, but also the size of the down round relative to the total capitalization of the company.

A tiny bridge round at a low price won't reprice the entire cap table as severely as a massive new equity raise.

Broad-Based vs. Narrow-Based

Within Weighted Average formulas, the difference lies in how "outstanding shares" are counted in the denominator:

• Broad-Based: Includes all outstanding common shares, preferred shares, and all unissued options in the option pool (Fully Diluted). This creates a larger denominator, resulting in a smaller adjustment to the share price, making it founder-friendly.
• Narrow-Based: Excludes unissued options or other instruments. This creates a smaller denominator, resulting in a larger downward adjustment to the price, making it investor-friendly.