antidilutive security — антиразводняющая ценная бумага
antidilutive stock — антиразводняющая акция
antidilutive share — антиразводняющая акция
antidilutive convertible preferred shares — антиразводняющие конвертируемые привилегированные акции
antidilutive bond — антиразводняющая облигация
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.