What is the ex-dividend date and why does it matter?

The ex-dividend date is the cutoff: you must own the stock before this date to receive the next dividend. Buy on or after the ex-date and the seller, not you, gets the payment. On the ex-date the stock typically opens lower by roughly the dividend amount to reflect the cash leaving the company.

A dividend has four dates: the declaration date (when the board announces), the ex-dividend date (the buy-by cutoff), the record date (the broker reconciliation date), and the pay date (when cash hits your account). The ex-date is the only one that affects the buy/sell decision.

The ex-date is usually one business day before the record date. To receive a dividend, your buy order must settle on or before the record date. Since US equities settle T+1, that means buying before the ex-date.

There is no free lunch from buying just before the ex-date and selling just after. The market mechanically drops the share price by approximately the dividend amount on the ex-date open, so the dividend is offset by the price drop. Strategies that try to capture this difference (dividend capture) usually lose to transaction costs and short-term tax rates.

• Buy before the ex-date → you receive the dividend
• Buy on or after → the previous holder gets it
• Stock typically opens lower by the dividend amount on ex-date
• Pay date is when cash actually lands in your account
• Dividend capture strategies rarely beat transaction costs + taxes

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