Looking at the universe of stocks we cover at Dividend Channel, on 8/30/17, Trustmark Corp (TRMK - Get Report), Navient Corp (NAVI), and MainSource Financial Group Inc (MSFG) will all trade ex-dividend for their respective upcoming dividends. Trustmark Corp will pay its quarterly dividend of $0.23 on 9/15/17, Navient Corp will pay its quarterly dividend of $0.16 on 9/15/17, and MainSource Financial Group Inc will pay its quarterly dividend of $0.17 on 9/15/17.

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As a percentage of TRMK's recent stock price of $30.15, this dividend works out to approximately 0.76%, so look for shares of Trustmark Corp to trade 0.76% lower — all else being equal — when TRMK shares open for trading on 8/30/17. Similarly, investors should look for NAVI to open 1.17% lower in price and for MSFG to open 0.51% lower, all else being equal.

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

Trustmark Corp (TRMK - Get Report):


Navient Corp (NAVI):


MainSource Financial Group Inc (MSFG):


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 3.05% for Trustmark Corp, 4.68% for Navient Corp, and 2.02% for MainSource Financial Group Inc.

In Monday trading, Trustmark Corp shares are currently up about 0.2%, Navient Corp shares are up about 0.4%, and MainSource Financial Group Inc shares are off about 0.1% on the day.