Japan's Nikkei Stock Average disrupted a two day rally and traded lower on Friday as US jobs and housing data trailed estimates. Losses, however, were limited by exporter companies who gained on weaker Yen which attained 5-week record low. Mitsubishi UFJ Financial Group sank 1.1% after ratings of 15 worldwide banks were cut by Moody's Investors Service. Olympus Corp added 2.2% after the report Sony Corp is preparing to make an investment in the scandal-troubled optics manufacturer.