shares of richardson electronics ltd fell on thursday despite the engineering services companys morethandoubled profit in its latest quarter at 1348 et the stock was down 14 to 1846 the company which posted results after the market closed wednesday reported a thirdquarter profit of 634 million or 44 cents a share compared with 289 million or 21 cents a share for the same period a year earlier sales climbed 27 to 704 million driven by increases in the energy solutions business and canvys visual technology solutions unit analysts polled by factset had forecast sales of 70 million the companys gross margin stood unchanged at 318 but its green energy solutionss margin decreased to 257 from 346 a year ago richardson electronicss cash and investments also dropped to 246 million from 405 million at the end of fiscal 2022 and its operating expenses rose 65 to 148 million