Looking at the universe of stocks we cover at Dividend Channel, on 5/7/15, SJW Corp. ( SJW) will trade ex-dividend, for its quarterly dividend of $0.195, payable on 6/1/15. As a percentage of SJW's recent stock price of $30.00, this dividend works out to approximately 0.65%, so look for shares of SJW Corp. to trade 0.65% lower — all else being equal — when SJW shares open for trading on 5/7/15.Below is a dividend history chart for SJW, showing historical dividends prior to the most recent $0.195 declared by SJW Corp.: In general, dividends are not always predictable; but looking at the history above can help in judging whether the most recent dividend from SJW is likely to continue, and whether the current estimated yield of 2.60% on annualized basis is a reasonable expectation of annual yield going forward. The chart below shows the one year performance of SJW shares, versus its 200 day moving average: Looking at the chart above, SJW's low point in its 52 week range is $25.46 per share, with $35.67 as the 52 week high point — that compares with a last trade of $30.27. According to the ETF Finder at ETF Channel, SJW makes up 1.27% of the First Trust ISE Water Index Fund ETF ( FIW) which is trading relatively unchanged on the day Tuesday. In Tuesday trading, SJW Corp. shares are currently down about 1.5% on the day.