Looking at the universe of stocks we cover at Dividend Channel, on 10/21/13, Teekay Offshore Partners L.P. ( TOO) will trade ex-dividend, for its quarterly dividend of $0.5253, payable on 11/8/13. As a percentage of TOO's recent stock price of $33.20, this dividend works out to approximately 1.58%, so look for shares of Teekay Offshore Partners L.P. to trade 1.58% lower — all else being equal — when TOO shares open for trading on 10/21/13.Below is a dividend history chart for TOO, showing historical dividends prior to the most recent $0.5253 declared by Teekay Offshore Partners L.P.: In general, dividends are not always predictable; but looking at the history above can help in judging whether the most recent dividend from TOO is likely to continue, and whether the current estimated yield of 6.33% on annualized basis is a reasonable expectation of annual yield going forward. The chart below shows the one year performance of TOO shares, versus its 200 day moving average: Looking at the chart above, TOO's low point in its 52 week range is $24.55 per share, with $36.09 as the 52 week high point — that compares with a last trade of $33.24. According to the ETF Finder at ETF Channel, TOO makes up 3.59% of the International Dividend Achievers Portfolio ETF ( PID) which is trading higher by about 0.5% on the day Thursday. In Thursday trading, Teekay Offshore Partners L.P. shares are currently off about 0.6% on the day.