** Britain's largest broadband and mobile provider BT Group's BT.L shares > up 2.9% at 185.2p; stock among top gainers on FTSE 100 index .FTSE
** Co's fibre rollout footprint expands to 20.3 million in first half, supporting free cash flow targets of 2 billion pounds ($2.68 billion) by March 2027 and 3 billion pounds by decade's end
** BT Group raises its interim dividend to 2.45 pence, reiterates full-year 2026 and medium-term forecast
** Reports core profit of 4.13 billion pounds for six months to end-September, driven by cost-cutting measures and demand for faster connections under its Openreach networks arm
** Matt Dorset, equity research analyst at Quilter Cheviot, says, "BT's shares still look good value, with investment spending now peaking and strong cash flow expected in the years ahead"
** Including session's gains, stock has risen 28.6% YTD vs FTSE 100 index gains of 19.2%
($1 = 0.7451 pounds)
(Reporting by Tuhina and Raechel Thankam Job in Bengaluru)
((Tuhina@thomsonreuters.com))