<prompt> Human: So, I think this isnt discussed often, but my observation is the following, please correct me if Im wrong: If you buy into a Vanguard ETF shortly before the Ex-dividend-date, you get the full dividend. If you buy a Vanguard mutual fund shortly before the Ex-div-date, you get the dividend prorated for the amount of time you were invested in the fund.Is this correct? If so, whats the corrective measure of the market to make up for the difference? The drop in the ETFs value past the ex-div-date?  <response>: Theoretically, dividend stocksETFs will raise in value consistently between ex-dividend-dates, and then drop by the amount of the dividend the day after the ex-dividend-date. These movements of course get buried with normal fluctuations of the market, so you may not see these movements due to the dividend. 