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Antidilution

What is Antidilution?

Antidilution is a term primarily used in finance, specifically in the context of investments and corporate finance, and its definition pertains to measures taken to prevent the decrease in ownership percentage in a company following new issuance of stock. Antidilution provisions are typically embedded in the contractual agreements of convertible securities like preferred stocks or convertible bonds. The meaning of antidilution may refer to mechanisms that adjust the conversion rates of these securities in response to events such as stock splits, stock dividends, or additional issuances of new shares, thus protecting investors from dilution of their equity stake.


Antidilution in More Detail

The primary purpose of antidilution provisions is to maintain the economic value and proportional ownership interests of existing shareholders when the company issues new shares. This is crucial for investors who want to ensure that their investment does not lose value merely as a result of an increase in the total number of shares outstanding. There are several types of antidilution provisions:

Full Ratchet: This type of antidilution provision adjusts the conversion price of the existing shares to the new, lower price at which new shares are sold. This method can be quite favorable to existing investors as it offers a direct adjustment based on the new issuance price.

Weighted Average: A more common approach, the weighted average method adjusts the conversion price based on the average price of all shares outstanding after the new shares are issued, and the proportion of new shares relative to the total. This results in a less severe adjustment compared to the full ratchet method.

Understanding antidilution is essential for investors and corporate managers alike, as it influences financial decisions and impacts shareholder value. It is particularly significant in the fields of venture capital and startup financing, where equity stakes are critically important.