Looking at the universe of stocks we cover at Dividend Channel, on 5/6/14, Summit Midstream Partners LP ( SMLP) will trade ex-dividend, for its quarterly dividend of $0.50, payable on 5/15/14. As a percentage of SMLP's recent stock price of $44.71, this dividend works out to approximately 1.12%, so look for shares of Summit Midstream Partners LP to trade 1.12% lower — all else being equal — when SMLP shares open for trading on 5/6/14.Below is a dividend history chart for SMLP, showing historical dividends prior to the most recent $0.50 declared by Summit Midstream 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 SMLP is likely to continue, and whether the current estimated yield of 4.47% on annualized basis is a reasonable expectation of annual yield going forward. The chart below shows the one year performance of SMLP shares, versus its 200 day moving average: Looking at the chart above, SMLP's low point in its 52 week range is $26.96 per share, with $46.10 as the 52 week high point — that compares with a last trade of $44.71. According to the ETF Finder at ETF Channel, SMLP makes up 3.62% of the Junior MLP ETF ( MLPJ) which is trading relatively unchanged on the day Friday. In Friday trading, Summit Midstream Partners LP shares are currently off about 0.8% on the day.