U.S. stock futures were lower this morning, with the Dow futures falling around 300 points on Friday.Shares of Frequency Electronics, Inc. FEIM fell sharply in today's pre-market trading after the company reported results for the fourth quarter.Frequency Electronics reported earnings of 34 cents per share for the fourth quarter, up from 28 cents per share in the year-ago period. The company’s sales rose to $19.986 million from$15.576 million.Frequency Electronics shares dipped 5.4% to $21.44 in the pre-mar ...