Jarvis Securities is at its highest in over three months after the retail stockbroker did a deal to provide a branded execution-only share dealing services for mobile media firm Worldlink Group.Tunbridge Wells-based Jarvis says the deal with Frankfurt-listed Worldlink offers it "an enormous opportunity to expand our retail client base".Worldlink owns the UK and US patents for the transmission of profiled real-time data to mobile devices. It will offer its data product via branded links with a number of information vendors and daily national newspapers. The first newspaper ads will begin next Tuesday.