Could someone buy this stock long and sell it short at the same time, then just before it went ex-div, close the short position for say a couple days then reestablish the short, collect the dividend on the long and have only those couple days a year when their was no short position be at risk of loss of capital? Just curious.
I dont know about your strategy but I play EX date like this: buy stock one month before EX date, sell on the run up, short on EX-1, pay dividend and cover after EX date. Makes more money than collecting divies.
And anyway, your idea is essentially just the same as buying just before ex-div and then selling immediately afterwards, There is no need to even bother with the long-short strategy.
Some people try dividend capture strategies like that but studies show they don't work a majority of the time - for one thing a stock drops by the amount of the dividend on ex-dividend day. So you get the dividend but lose an equal amount in the stock price. As usual, if something sounds like a sure fire winner, it probably isn't.