On 12/27/13, American Capital Agency Corp's 8.000% Series A Cumulative Redeemable Preferred Stock ( AGNCP) will trade ex-dividend, for its quarterly dividend of $0.50, payable on 1/15/14. As a percentage of AGNCP's recent share price of $25.70, this dividend works out to approximately 1.95%, so look for shares of AGNCP to trade 1.95% lower — all else being equal — when AGNCP shares open for trading on 12/27/13. On an annualized basis, the current yield is approximately 7.82%.As of last close, AGNCP was trading at a 2.40% premium to its liquidation preference amount. The chart below shows the one year performance of AGNCP shares, versus AGNC: Below is a dividend history chart for AGNCP, showing historical dividends prior to the most recent $0.50 on American Capital Agency Corp's 8.000% Series A Cumulative Redeemable Preferred Stock: According to the ETF Finder at ETF Channel, American Capital Agency Corp ( AGNC) makes up 11.72% of the iShares Mortgage Real Estate Capped ETF (REM) which is trading higher by about 0.1% on the day Thursday. In Thursday trading, American Capital Agency Corp's 8.000% Series A Cumulative Redeemable Preferred Stock ( AGNCP) is currently up about 0.4% on the day, while the common shares ( AGNC) are up about 0.3%.