The ASX200 closed up 0.5% on Thursday although it struggled after 3pm giving back almost half of its gains as fairly heavy selling rolled through the SPI futures. Investors still enjoyed over 70% of the main index close up on the day but some weakness in the banks was enough to drag the market back towards 7300, historically the banks are strong from now through until November with ANZ, NAB and Westpac all trading ex-dividend in the first half of next month but after such a stellar advance over the last year it may be too much to ask for standout ongoing strength…