Looking at the universe of stocks we cover at Dividend Channel, on 5/2/14, Memorial Production Partners LP ( MEMP) will trade ex-dividend, for its quarterly dividend of $0.55, payable on 5/13/14. As a percentage of MEMP's recent stock price of $23.26, this dividend works out to approximately 2.36%, so look for shares of Memorial Production Partners LP to trade 2.36% lower — all else being equal — when MEMP shares open for trading on 5/2/14.Below is a dividend history chart for MEMP, showing historical dividends prior to the most recent $0.55 declared by Memorial Production 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 MEMP is likely to continue, and whether the current estimated yield of 9.46% on annualized basis is a reasonable expectation of annual yield going forward. The chart below shows the one year performance of MEMP shares, versus its 200 day moving average: Looking at the chart above, MEMP's low point in its 52 week range is $18.16 per share, with $23.49 as the 52 week high point — that compares with a last trade of $23.29. According to the ETF Finder at ETF Channel, MEMP makes up 4.44% of the Junior MLP ETF ( MLPJ) which is trading relatively unchanged on the day Wednesday. In Wednesday trading, Memorial Production Partners LP shares are currently off about 0.5% on the day.