Meaning
Adjusting the conversion ratio of preferred shares ensures that an initial investment maintains its economic value if subsequent funding rounds occur at a lower price. While equity dilution protection does not prevent the issuance of new shares, it mitigates the impact on the percentage ownership held by early investors. These clauses are standard in venture capital term sheets and are typically triggered by a down round where the price per share falls below the previous benchmark.
Conversion Formula
The adjustment usually follows a broad based weighted average approach that considers the total outstanding capital of the firm. A narrow based formula would instead focus only on the specific series of shares being issued, resulting in a more aggressive adjustment for equity dilution protection. Calculations take into account the price at which the new shares are sold and the number of shares actually issued compared to the existing pool.
This mathematical recalibration grants the protected investor additional shares upon conversion into common stock.
Price Floor
Some agreements include a full ratchet provision which is the most protective and least founder friendly version of this mechanism. Under such a rule, the conversion price of the old shares is dropped to match the new lower price regardless of how few new shares are issued for equity dilution protection. This can lead to a massive shift in ownership that substantially reduces the stakes of the founding team and employees.
It represents a heavy hammer used mainly in high risk or distressed financing scenarios.
Economic Parity
Maintaining the value of the original contribution is the primary objective when market conditions force a lower valuation. Equity dilution protection allows investors to manage the risk of overpaying in an early stage when the future performance of the company is uncertain. Founders often negotiate for a pay to play provision which requires the investor to participate in the new round to keep their protection.
This ensures that the benefit of the adjustment is reserved for those who continue to support the company financially.