Looking at the universe of stocks we cover at Dividend Channel, on 12/21/17, Luminex Corp (LMNX - Get Report), DCT Industrial Trust Inc (DCT), and CYS Investments, Inc. (CYS) will all trade ex-dividend for their respective upcoming dividends. Luminex Corp will pay its quarterly dividend of $0.06 on 1/12/18, DCT Industrial Trust Inc will pay its quarterly dividend of $0.36 on 1/4/18, and CYS Investments, Inc. will pay its quarterly dividend of $0.25 on 12/27/17.

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As a percentage of LMNX's recent stock price of $20.60, this dividend works out to approximately 0.29%, so look for shares of Luminex Corp to trade 0.29% lower — all else being equal — when LMNX shares open for trading on 12/21/17. Similarly, investors should look for DCT to open 0.61% lower in price and for CYS to open 2.99% lower, all else being equal.

Below are dividend history charts for LMNX, DCT, and CYS, showing historical dividends prior to the most recent ones declared.

Luminex Corp (LMNX - Get Report):

LMNX+Dividend+History+Chart

DCT Industrial Trust Inc (DCT):

DCT+Dividend+History+Chart

CYS Investments, Inc. (CYS):

CYS+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 1.16% for Luminex Corp, 2.44% for DCT Industrial Trust Inc, and 11.97% for CYS Investments, Inc..

In Tuesday trading, Luminex Corp shares are currently off about 0.2%, DCT Industrial Trust Inc shares are off about 0.4%, and CYS Investments, Inc. shares are off about 0.1% on the day.