** Keller Group, a ground engineering contractor, +3pct in hefty volumes & 3rd top FTSE midcap gainer aftersmall beat in FY2015 results
** Helped by strong performance in U.S., FY PBT beforeexceptional items +12 pct to 95.7 mln stg (vs consensus of 93.5mln stg according to Jefferies)
** Jefferies upgrades FY2016E PBT estimate by 6.7 pct to102.4 mln stg
** About 3.5X 30-day avg vol traded through in c.1 hr
** Up to Friday's close, stock -4.6 pct YTD, largely in linewith fall in broader FTSE 250 index
** Co lays cost-effective foundations for infrastructure,industrial, commercial and residential projects
(RM: esha.vaish.thomsonreuters.com@reuters.net)