** Shares of Australia's L1 Group L1G.AX rise as much as 11.6% to A$0.815, posting their biggest intraday pct gain since August 6
** Stock hits its highest level since September 1, up for a third straight session
** Fund manager posts total assets under management of A$16.95 billion ($11.17 billion), compared with A$16.50 billion reported in June
** Stock has risen 17.4% this year, including the session's gains
($1 = 1.5170 Australian dollars)
(Reporting by Roshan Thomas in Bengaluru)
((Roshan.Thomas@thomsonreuters.com;))