** Shares of building products maker Forterra FORT.L up 9.1% at 200.5 pence
** Stock is top gainer in the FTSE All Share Index .FTAS, which is up 0.2%
** On track for its biggest one-day pct gain since Nov 2020, if gains hold
** Co expects second-half adjusted EBITDA to be modestly ahead of first-half figure, posts H1 adjusted PBT up 82.4% YOY
** Co appears well-placed to see significant profitability improvements as volumes return, Peel Hunt says
** Including session moves, FORT stock up nearly 23% YTD
(Reporting by Nithyashree R B in Bengaluru)
((NithyashreeRB@thomsonreuters.com))