Looking at the universe of stocks we cover at Dividend Channel, on 2/20/14, Alon USA Partners LP ( ALDW) will trade ex-dividend, for its quarterly dividend of $0.18, payable on 3/3/14. As a percentage of ALDW's recent stock price of $14.74, this dividend works out to approximately 1.22%, so look for shares of Alon USA Partners LP to trade 1.22% lower — all else being equal — when ALDW shares open for trading on 2/20/14.Below is a dividend history chart for ALDW, showing historical dividends prior to the most recent $0.18 declared by Alon USA Partners LP: In general, dividends are not always predictable; but looking at the history above can help in judging whether the most recent dividend from ALDW is likely to continue, and whether the current estimated yield of 4.88% on annualized basis is a reasonable expectation of annual yield going forward. The chart below shows the one year performance of ALDW shares, versus its 200 day moving average: Looking at the chart above, ALDW's low point in its 52 week range is $10.25 per share, with $29.12 as the 52 week high point — that compares with a last trade of $14.74. According to the ETF Finder at ETF Channel, ALDW makes up 2.66% of the Dynamic Energy Exploration & Production Portfolio ETF ( PXE) which is trading up by about 1% on the day Tuesday. In Tuesday trading, Alon USA Partners LP shares are currently down about 0.4% on the day.