Looking at the universe of stocks we cover at Dividend Channel, on 10/11/13, BlackRock Muni Intermediate Duration Fund ( MUI) will trade ex-dividend, for its monthly dividend of $0.0715, payable on 11/1/13. As a percentage of MUI's recent stock price of $13.73, this dividend works out to approximately 0.52%, so look for shares of BlackRock Muni Intermediate Duration Fund to trade 0.52% lower — all else being equal — when MUI shares open for trading on 10/11/13.Below is a dividend history chart for MUI, showing historical dividends prior to the most recent $0.0715 declared by BlackRock Muni Intermediate Duration Fund: In general, dividends are not always predictable; but looking at the history above can help in judging whether the most recent dividend from MUI is likely to continue, and whether the current estimated yield of 6.25% on annualized basis is a reasonable expectation of annual yield going forward. The chart below shows the one year performance of MUI shares, versus its 200 day moving average: Looking at the chart above, MUI's low point in its 52 week range is $13.36 per share, with $17.88 as the 52 week high point — that compares with a last trade of $13.73. According to the ETF Finder at ETF Channel, MUI makes up 1.25% of the CEF Municipal Income ETF ( XMPT) which is trading lower by about 0.3% on the day Wednesday. In Wednesday trading, BlackRock Muni Intermediate Duration Fund shares are currently down about 0.3% on the day.