BUZZ-Temenos: Vontobel convinced Fidessa deal will pay off

** Shares (Berlin: DI6.BE - news) in banking software company Temenos up 3.3 pct

** Vontobel raises PT by 22 pct, confirms "buy" rating "with full conviction"

** Vontobel says all its scenarios show that the proposed acquisition of Fidessa represents significant upside potential for Temenos shareholders

** The broker adds there are plausible and proven ways to accelerate Fidessa's revenue growth rapidly

** Last week Temenos shares fell c. 7 pct after the company said it was in advanced talks to make cash offer for Fidessa, brokers were pointing to co's relicensing tailwind at its peak

** Among best performers on Stoxx 600, tops on Swiss mid-cap index