Cap Gains Dist are distributions that are paid to ETF shareholders from the capital gains of the underlying securities. One major advantage of an ETF vs. a mutual fund is tax efficiency. Typically, capital gains are only realized on an ETF when the shareholder sells his or her shares for a profit whereas a mutual fund redemption can trigger a capital gain to all other investors in the same fund, even if they have not sold their shares. ETFs should have lower or no capital gains distributions because of their ability to shed their lowest-basis shares to institutional arbitrageurs through in-kind redemptions. In certain cases, ETFs will distribute capital gains to the shareholder and the % amount shown represents the distribution per share divided by the closing price on the ex-date of the distribution. It can be multiplied against your holdings to determine how much you will receive and as a result may owe taxes against.