** Bendigo and Adelaide Bank BEN.AX rises as much as 3.9% to A$13.490, highest since February 14
** Stock marks biggest intraday pct gain since early June
** Victoria-based bank reports cash earnings after tax of A$514.6 mln ($333.6 mln), beats VA consensus of A$509.9 mln
** Impairment of A$539.5 mln already priced in by market after bank flagged it earlier this month
** Reports stable FY net interest margin of 1.88%
** YTD, BEN gains 2.3%
($1 = A$1.5425)
(Reporting by Shivangi Lahiri in Bengaluru)
((shivangi.lahiri@thomsonreuters.com))