The announcement of a dividend payout typically leads to a temporary increase in the stock price as investors buy in to qualify for the dividend. However, on the ex-dividend date, the stock price usually drops by roughly the amount of the dividend payout, as the company's assets have effectively decreased by the total amount of the dividend. In this case, John Hancock Premium Div's stock price is expected to decrease by about 8.25 cents per share on the ex-dividend date.