Mainly applies to convertible securities. Circumstances under which a company can effect an earlier call, usually stated as percentage of a stock's trading price during a particular period, such as 140% of the exercise price during a 40-day trading span.
CONDITIONAL CALL
Meaning of CONDITIONAL CALL in English
Campbell R. Harvey. Hypertextual finance English glossary. Английский словарь гипертекстовых финансов. 2012