Looking at the universe of stocks we cover at Dividend Channel, on 8/18/14, Main Street Capital Corporation ( MAIN) will trade ex-dividend, for its monthly dividend of $0.165, payable on 9/15/14. As a percentage of MAIN's recent stock price of $32.50, this dividend works out to approximately 0.51%, so look for shares of Main Street Capital Corporation to trade 0.51% lower — all else being equal — when MAIN shares open for trading on 8/18/14.Below is a dividend history chart for MAIN, showing historical dividends prior to the most recent $0.165 declared by Main Street Capital Corporation: In general, dividends are not always predictable; but looking at the history above can help in judging whether the most recent dividend from MAIN is likely to continue, and whether the current estimated yield of 6.09% on annualized basis is a reasonable expectation of annual yield going forward. The chart below shows the one year performance of MAIN shares, versus its 200 day moving average: Looking at the chart above, MAIN's low point in its 52 week range is $28.69 per share, with $35.72 as the 52 week high point — that compares with a last trade of $32.52. According to the ETF Finder at ETF Channel, MAIN makes up 5.09% of the BDC Income ETF ( BIZD) which is trading lower by about 0.1% on the day Thursday. In Thursday trading, Main Street Capital Corporation shares are currently down about 0.3% on the day.