Looking at the universe of stocks we cover at Dividend Channel, on 12/10/14, Gabelli Multimedia Trust ( GGT) will trade ex-dividend, for its quarterly dividend of $0.39, payable on 12/19/14. As a percentage of GGT's recent stock price of $10.45, this dividend works out to approximately 3.73%, so look for shares of Gabelli Multimedia Trust to trade 3.73% lower — all else being equal — when GGT shares open for trading on 12/10/14.Below is a dividend history chart for GGT, showing historical dividends prior to the most recent $0.39 declared by Gabelli Multimedia Trust: In general, dividends are not always predictable; but looking at the history above can help in judging whether the most recent dividend from GGT is likely to continue, and whether the current estimated yield of 14.93% on annualized basis is a reasonable expectation of annual yield going forward. The chart below shows the one year performance of GGT shares, versus its 200 day moving average: Looking at the chart above, GGT's low point in its 52 week range is $8.16 per share, with $12.56 as the 52 week high point — that compares with a last trade of $10.45. According to Preferred Stock Channel, there is a series of preferred stock that is senior to GGT, which trades under the symbol GGT.PRB — more info ». In Monday trading, Gabelli Multimedia Trust shares are currently off about 0.3% on the day.