** Australian Finance Group AFG.AX falls as much as 4.2% to A$2.53, lowest since August 28
** Mortgage broking and financial services firm trades ex-dividend; pays final dividend of 5.3 AU cents/share
** AFG last down 1.9%, paring YTD gains to 71.5%
(Reporting by Keshav Singh Chundawat in Bengaluru)
((Keshav.SinghChundawat@thomsonreuters.com))