A customer counts her ringgit notes outside a money changer at the central business district in Singapore in this August 25, 2015 file photo. Malaysia's ringgit jumped more than 5 percent to a five-week high on October 7, 2015 on stop-loss dollar selling and higher local stocks. The ringgit, the worst performing Asian currency so far this year, surged as much as 5.2 percent to 4.1600 per dollar, its strongest since Sept 1. REUTERS/Edgar Su/Files