** Shares of Beforepay Group Ltd B4P.AX jump as much as
14.7% to A$0.585, their highest level since Aug 16, 2022
** Fintech co posts a 148% jump in Q3 net transaction margin
to A$2.59 mln ($1.71 mln)
** Posts qtrly pay advances of A$161.9 mln, up 84%
** Shares post their biggest intraday pct gain since April
18 and are on track to lodge a second consecutive session of
gains
** B4P stock up 9.7% YTD, as of last close
($1 = 1.5133 Australian dollars)
(Reporting by Echha Jain in Bengaluru)
((Echha.jain@thomsonreuters.com))