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Japanese shares climbed to highs not seen since 1990 on Monday as strong earnings and offshore demand fuelled a three-week winning streak, while other Asian markets were more mixed with eyes fixed on the U.S. rate outlook.

Japan's Nikkei (.N225) added another 0.6% to break its September peak and bring its gains for the month so far to a whopping 9.3%.

Financial shares led the gains on Monday as investors prepare for an eventual end to negative rates, while auto makers have been benefiting from a weak yen and high exports.