OK, I owned 3,000 shares of AGNC back in September. I waited til it went "ex" at 1.25/share, and then on Sept. 20 and 21 I sold all 3,000 for an average share price of 35.05, net of commission. I kept some of my powder dry, but also invested some of that money in things that pay monthly rather than quarterly dividends, went til they went "ex," then sold those too. Then today after hours I bought the 3,000 shares of AGNC (that I had sold at 35.05 in September), but my share price today was 30.88 net of commission. So I got both the 3Q and 4Q divvies, plus I have another $12,521.34 in cash that I didn't have to spend in my buyback today because the share price was lower.
Yes, yes, I would have been even better off if I had bought before the announcement at market close. And yes, I realize the price is going to go down after the ex-date and may decline further in 2013 if the divvy declines then.
But for now, I am a happy camper. And in this world of ours today, sometimes one just has to live for now :)