Owners of ProShares Short ETFs got a rude awakening this morning when short-term capital gains went ex for their ETFs. And they were huge! Usually funds give investors a little time to make a decision if they want to sell the fund before the ex-date, but ProShares announced the gains yesterday after the close. This didn't allow owners to do anything but be forced to pay the short-term capital gains tax on their shares.
There's definitely a few traders out there who bought these as a short-term play in a taxable account in recent days that are now stuck paying big capital gains taxes on them. Next time ProShares may want to give investors more time between the declaration and the ex-date.