Looking at the universe of stocks we cover at Dividend Channel, on 5/20/15, Tortoise Energy Infrastructure Fund ( TYG) will trade ex-dividend, for its quarterly dividend of $0.645, payable on 5/29/15. As a percentage of TYG's recent stock price of $44.38, this dividend works out to approximately 1.45%, so look for shares of Tortoise Energy Infrastructure Fund to trade 1.45% lower — all else being equal — when TYG shares open for trading on 5/20/15.Below is a dividend history chart for TYG, showing historical dividends prior to the most recent $0.645 declared by Tortoise Energy Infrastructure Fund: In general, dividends are not always predictable; but looking at the history above can help in judging whether the most recent dividend from TYG is likely to continue, and whether the current estimated yield of 5.81% on annualized basis is a reasonable expectation of annual yield going forward. The chart below shows the one year performance of TYG shares, versus its 200 day moving average: Looking at the chart above, TYG's low point in its 52 week range is $39.15 per share, with $50.00 as the 52 week high point — that compares with a last trade of $44.37. According to Preferred Stock Channel, there are 2 series of preferred stock that are senior to TYG — find out what they are ». In Monday trading, Tortoise Energy Infrastructure Fund shares are currently down about 0.1% on the day.