Australian gold stocks head for best day in nearly 5 months after bullion surge

** Australia's gold stocks .AXGD climb as much as 9.1%, posting their biggest intraday pct gain since June 15

** Sub-index touches its highest level since October 19

** Gold prices surged more than 3% overnight, as the dollar tumbled after Democrats swept the US midterm elections GOL/

** Evolution Mining EVN.AX and Northern Star Resources NST.AX rise 8.4% and 6%, respectively

** AXGD down 4.8% YTD