Looking at the universe of stocks we cover at Dividend Channel, on 7/7/14, Enerplus Corp ( ERF) will trade ex-dividend, for its monthly dividend of $0.09, payable on 7/21/14. As a percentage of ERF's recent stock price of $25.16, this dividend works out to approximately 0.36%.Below is a dividend history chart for ERF, showing historical dividends prior to the most recent $0.09 declared by Enerplus Corp: In general, dividends are not always predictable; but looking at the history above can help in judging whether the most recent dividend from ERF is likely to continue, and whether the current estimated yield of 4.29% on annualized basis is a reasonable expectation of annual yield going forward. The chart below shows the one year performance of ERF shares, versus its 200 day moving average: Looking at the chart above, ERF's low point in its 52 week range is $14.43 per share, with $25.37 as the 52 week high point — that compares with a last trade of $25.17. According to the ETF Finder at ETF Channel, ERF makes up 2.47% of the PowerShares Cleantech Portfolio ETF ( PZD) which is trading higher by about 0.7% on the day Thursday. In Thursday trading, Enerplus Corp shares are currently down about 0.3% on the day.