The yen was set for a weekly gain during early trading on Friday (October 30th) amid reports that Japanese corporations were repatriating overseas profits.Buying activity in the yen was said to have been spurred by the export sector as foreign currencies were converted back into yen on the last trading day of the month.Speaking to Bloomberg, Lee Wai Tuck, a currency strategist at Forecast in Singapore, commented: "There's talk of exporters buying the yen because of month-end demand".The rise in the yen defied a more general move out of low-yield currencies, with the latest gross domestic product figures from the US giving rise to a heightened appetite for risk.Advance third-quarter figures showed growth of 3.5 per cent, outstripping analysts' expectations of a 3.2 per cent rise.The figures helped to resuscitate hope in the prospects for global economic recovery and as a result, high-yield currencies such as the New Zealand and Australian dollars climbed during trading on Thursday and continued to move upwards this morning.