** Shares of Australia's Fortescue FMG.AX fall 5.2% to A$18.305, their lowest level since August 4
** Iron ore miner trades ex-dividend; to pay A$0.60 per share
** Mining sub-index .AXMM down 0.03%
** YTD, stock up 0.3%
(Reporting by Shruti Agarwal in Bengaluru)
((Shruti.Agarwal@thomsonreuters.com))