There's no foolproof way to know the future for Gulfmark Offshore (NYS: GLF) or any other company. However, certain clues may help you see potential stumbles before they happen -- and before your stock craters as a result.

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NEW YORK (TheStreet) -- GulfMark Offshore (NYSE:GLF) has been upgraded by TheStreet Ratings from hold to buy. The company's strengths can be seen in multiple areas, such as its increase in net income, revenue growth, largely solid financial position ...

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HOUSTON, Jul 10, 2012 (GlobeNewswire via COMTEX) -- GulfMark Offshore, Inc. (NYSE:GLF) announced today that its second quarter 2012 earnings conference call is scheduled for Tuesday, July 24, 2012, at 9:00 a.m.