Looking at the universe of stocks we cover at Dividend Channel, on 9/25/14, Arlington Asset Investment Corp ( AI) will trade ex-dividend, for its quarterly dividend of $0.875, payable on 10/31/14. As a percentage of AI's recent stock price of $27.25, this dividend works out to approximately 3.21%, so look for shares of Arlington Asset Investment Corp to trade 3.21% lower — all else being equal — when AI shares open for trading on 9/25/14.Below is a dividend history chart for AI, showing historical dividends prior to the most recent $0.875 declared by Arlington Asset Investment Corp: In general, dividends are not always predictable; but looking at the history above can help in judging whether the most recent dividend from AI is likely to continue, and whether the current estimated yield of 12.84% on annualized basis is a reasonable expectation of annual yield going forward. The chart below shows the one year performance of AI shares, versus its 200 day moving average: Looking at the chart above, AI's low point in its 52 week range is $22.79 per share, with $28.66 as the 52 week high point — that compares with a last trade of $27.20. According to the ETF Finder at ETF Channel, AI makes up 1.48% of the SPDR S&P Capital Markets ETF ( KCE) which is trading lower by about 0.2% on the day Tuesday. In Tuesday trading, Arlington Asset Investment Corp shares are currently off about 0.3% on the day.