Looking at the universe of stocks we cover at Dividend Channel, on 8/13/13, BlackRock Credit Allocation Income Trust ( BTZ) will trade ex-dividend, for its monthly dividend of $0.0785, payable on 8/30/13. As a percentage of BTZ's recent stock price of $12.65, this dividend works out to approximately 0.62%, so look for shares of BlackRock Credit Allocation Income Trust to trade 0.62% lower — all else being equal — when BTZ shares open for trading on 8/13/13.Below is a dividend history chart for BTZ, showing historical dividends prior to the most recent $0.0785 declared by BlackRock Credit Allocation Income Trust: In general, dividends are not always predictable; but looking at the history above can help in judging whether the most recent dividend from BTZ is likely to continue, and whether the current estimated yield of 7.45% on annualized basis is a reasonable expectation of annual yield going forward. The chart below shows the one year performance of BTZ shares, versus its 200 day moving average: Looking at the chart above, BTZ's low point in its 52 week range is $12.32 per share, with $14.44 as the 52 week high point — that compares with a last trade of $12.65. According to the ETF Finder at ETF Channel, BTZ makes up 1.16% of the CEF Income Composite Portfolio ETF ( PCEF) which is trading lower by about 0.1% on the day Friday. In Friday trading, BlackRock Credit Allocation Income Trust shares are currently down about 0.4% on the day.