UK's IMI rises on FY revenue growth outlook, share buyback plan
** IMI IMI.L gains 3.5% to 2848p; top gainer on FTSE 100 .FTSE ** Specialist engineering company expects mid-single-digit organic revenue growth, expanded margins for 2026, progressing toward its medium-term target of 20%+ ** Announces 500 million-pound ($668.3 million) share buyback programme ** YTD, IMI rises 10.6% ($1 = 0.7482 pounds) (Reporting by Tuhina in Bengaluru) ((Tuhina@thomsonreuters.com))