Looking at the universe of stocks we cover at Dividend Channel, on 11/26/14, Trustmark Corp. (TRMK - Get Report), American Equity Investment Life Holding Co (AEL), and Safety Insurance Group, Inc. (SAFT) will all trade ex-dividend for their respective upcoming dividends. Trustmark Corp. will pay its quarterly dividend of $0.23 on 12/15/14, American Equity Investment Life Holding Co will pay its annual dividend of $0.20 on 12/15/14, and Safety Insurance Group, Inc. will pay its quarterly dividend of $0.70 on 12/15/14.

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As a percentage of TRMK's recent stock price of $24.26, this dividend works out to approximately 0.95%, so look for shares of Trustmark Corp. to trade 0.95% lower — all else being equal — when TRMK shares open for trading on 11/26/14. Similarly, investors should look for AEL to open 0.74% lower in price and for SAFT to open 1.15% lower, all else being equal.

Below are dividend history charts for TRMK, AEL, and SAFT, showing historical dividends prior to the most recent ones declared.

Trustmark Corp. (TRMK - Get Report):

TRMK+Dividend+History+Chart

American Equity Investment Life Holding Co (AEL):

AEL+Dividend+History+Chart

Safety Insurance Group, Inc. (SAFT):

SAFT+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 3.79% for Trustmark Corp., 0.74% for American Equity Investment Life Holding Co, and 4.59% for Safety Insurance Group, Inc..

In Monday trading, Trustmark Corp. shares are currently up about 1.3%, American Equity Investment Life Holding Co shares are up about 0.6%, and Safety Insurance Group, Inc. shares are up about 0.9% on the day.