Ex-dividend date - Financial definition
Concise definition of the term ex-dividend date
A share's ex-dividend date is date from which on it is quoted without entitlement to the upcoming dividend payment. To compensate buyers for this, the price is reduced by the amount of the dividend.
Comprehensive definition of the term ex-dividend date
The ex-dividend date is determined by the stock exchange on which the share is listed, and is usually set to be 2 business days prior to the record date.