Encouraged by positive customer feedback from early installations, the firm is shifting its sales focus to the ePlex system and respiratory pathogen panel.
The GenomeWeb Index gained more than 5 percent in September, after falling more than 2 percent in August, and outperformed the Nasdaq Biotechnology Index.
The investment bank said it has heard positive feedback from early adopters in Europe of GenMark's ePlex system and respiratory panel.
The company will soon submit its ePlex instrument and respiratory pathogen panel for US Food and Drug Administration clearance.
The GenomeWeb Index fell half a percent in June, underperforming the Dow Jones Industrial Average, but far outpacing the Nasdaq and Nasdaq Biotech Index.
The ePlex system integrates sample preparation with GenMark's eSensor technology to enable the detection of multiple molecular targets on a single test cartridge.
The device, the ORAcollectDx, is an alternative to buccal swabs and provides higher DNA yields, according to the firm.
The GenomeWeb Index rose 4 percent in May, in line with the Nasdaq and the Nasdaq Biotech Index, and outperforming the Dow Jones Industrial Average.
The company said sales of its XT-8 molecular diagnostics system were strong, despite a lighter-than-expected flu season.
The GenomeWeb Index fell 1 percent in April, outperforming the Nasdaq, but falling significantly short of the performance of the Nasdaq Biotech Index.
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