Looking at the universe of stocks we cover at Dividend Channel, on 9/14/15, Belden Inc (BDC - Get Report), American Railcar Industries Inc (ARII), and Methanex Corp (MEOH) will all trade ex-dividend for their respective upcoming dividends. Belden Inc will pay its quarterly dividend of $0.05 on 10/2/15, American Railcar Industries Inc will pay its quarterly dividend of $0.40 on 9/30/15, and Methanex Corp will pay its quarterly dividend of $0.275 on 9/30/15.

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As a percentage of BDC's recent stock price of $50.76, this dividend works out to approximately 0.10%, so look for shares of Belden Inc to trade 0.10% lower — all else being equal — when BDC shares open for trading on 9/14/15. Similarly, investors should look for ARII to open 0.99% lower in price and for MEOH to open 0.72% lower, all else being equal.

Below are dividend history charts for BDC, ARII, and MEOH, showing historical dividends prior to the most recent ones declared.

Belden Inc (BDC - Get Report):

BDC+Dividend+History+Chart

American Railcar Industries Inc (ARII):

ARII+Dividend+History+Chart

Methanex Corp (MEOH):

MEOH+Dividend+History+Chart

In general, dividends are not always predictable, following the ups and downs of company profits over time. Therefore, a good first due diligence step in forming an expectation of annual yield going forward, is looking at the history above, for a sense of stability over time. This can help in judging whether the most recent dividends from these companies are likely to continue. If they do continue, the current estimated yields on annualized basis would be 0.39% for Belden Inc, 3.97% for American Railcar Industries Inc, and 2.87% for Methanex Corp.

In Thursday trading, Belden Inc shares are currently up about 0.2%, American Railcar Industries Inc shares are up about 0.6%, and Methanex Corp shares are up about 0.6% on the day.