A transaction is considered to be antidilutive if its effect is to increase the amount of EPS, either by lowering the share count or increasing earnings.
A second use of the term refers to ownership rights, whereby existing shareholders in a certain class of shares have rights to purchase additional shares when there is a new issuance of securities that would otherwise reduce the ownership percentage of existing holders. This is called an anti-dilution provision.
Although most commonly used in reference to convertible securities whose exercise would have the effect of increasing EPS, the use of the term "antidilutive" has become much more comprehensive.
For example, if Company A acquires Company B by using its common stock, but the earnings of Company B add more to EPS than the common stock issued, it is said to be an antidilutive acquisition.
Investment dictionary. Academic. 2012.
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antidilutive — adj. * * * … Universalium
antidilutive — an ti•di•lu′tive adj … From formal English to slang
antidilutive — adj … Useful english dictionary
Antidilutive effect — Result of a transaction that increases earnings per common share ( e.g. by decreasing the number of shares outstanding). The New York Times Financial Glossary … Financial and business terms
antidilutive effect — Result of a transaction that increases earnings per common share ( earnings per share) ( e.g., by decreasing the number of shares outstanding). Bloomberg Financial Dictionary … Financial and business terms
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