Looking at the universe of stocks we cover at Dividend Channel, on 5/17/13, PBF Energy Inc ( PBF) will trade ex-dividend, for its quarterly dividend of $0.30, payable on 6/7/13. As a percentage of PBF's recent stock price of $30.46, this dividend works out to approximately 0.98%, so look for shares of PBF Energy Inc to trade 0.98% lower — all else being equal — when PBF shares open for trading on 5/17/13.Below is a dividend history chart for PBF, showing historical dividends prior to the most recent $0.30 declared by PBF Energy Inc: In general, dividends are not always predictable; but looking at the history above can help in judging whether the most recent dividend from PBF is likely to continue, and whether the current estimated yield of 3.94% on annualized basis is a reasonable expectation of annual yield going forward. The chart below shows the one year performance of PBF shares, versus its 200 day moving average: Looking at the chart above, PBF's low point in its 52 week range is $25.88 per share, with $42.50 as the 52 week high point — that compares with a last trade of $30.53. According to the ETF Finder at ETF Channel, PBF makes up 2.01% of the Dynamic Energy Exploration & Production Portfolio ETF ( PXE) which is trading relatively unchanged on the day Wednesday. In Wednesday trading, PBF Energy Inc shares are currently up about 1.1% on the day.