Looking at the universe of stocks we cover at Dividend Channel, on 10/21/13, Teekay LNG Partners LP ( TGP) will trade ex-dividend, for its quarterly dividend of $0.675, payable on 11/8/13. As a percentage of TGP's recent stock price of $41.49, this dividend works out to approximately 1.63%, so look for shares of Teekay LNG Partners LP to trade 1.63% lower — all else being equal — when TGP shares open for trading on 10/21/13.Below is a dividend history chart for TGP, showing historical dividends prior to the most recent $0.675 declared by Teekay LNG Partners LP: In general, dividends are not always predictable; but looking at the history above can help in judging whether the most recent dividend from TGP is likely to continue, and whether the current estimated yield of 6.51% on annualized basis is a reasonable expectation of annual yield going forward. The chart below shows the one year performance of TGP shares, versus its 200 day moving average: Looking at the chart above, TGP's low point in its 52 week range is $34.50 per share, with $45.42 as the 52 week high point — that compares with a last trade of $41.33. According to the ETF Finder at ETF Channel, TGP makes up 4.27% of the Guggenheim Shipping ETF ( SEA) which is trading higher by about 0.1% on the day Thursday. In Thursday trading, Teekay LNG Partners LP shares are currently up about 0.4% on the day.