** Shares of WEB Travel Group WEB.AX advances as much as 13.8% to A$4.55, to hit their highest since August 25
** Stock among top gainers on benchmark S&P/ASX 200 index .AXJO
** WEB's first-half underlying EBITDA beats Visible Alpha (VA) consensus estimate by ~5% at A$81.7 mln ($52.80 mln), lifted by a stronger rev margin, as per Citi
** Brokerage says FY26 EBITDA outlook's midpoint is largely in line with VA consensus estimates
** Americas segment growth outstripped Europe, which Citi flags as an early payoff from heavier bets on direct contracting
** Sees the result landing well, given margin improvement and robust total transaction value growth despite a choppy macro backdrop
** Stock has shed 3.7% YTD, including the day's moves
($1 = 1.5473 Australian dollars)
(Reporting by Kumar Tanishk in Bengaluru)
((Tanishk.Kumar@thomsonreuters.com; X: @thatstanishk http://www.x.com/thatstanishk;))