BOULDER, Colo.--Xenometrix, a biotechnology company here that uses its proprietary gene profiling technology to help the pharmaceutical industry optimize drug leads, has released financial results for the quarter ended September 30 that a show a slight gain in revenue over the same period a year ago, but a loss in net income and net per share. The losses are in part the result of a loss of grant money, greater R&D expenditures, new interest expenses, and an extraordinary gain recorded in the comparable period in 1996.