Fortinet (FTNT) sealed the tech security sector's earnings season, at least for the bigger vendors, with a big stock jump and better than 20% earnings hike. IBD's Computer Software-Security industry group is still languishing, in 159th place of 197 industries tracked. With PC sales off and other factors at play, the group's stocks have zig-zagged and were down a collective 2% this year through Wednesday, with Fortinet (FTNT) down 8% in that span.