TOKYO (Reuters) - Japan's Nikkei share average hit a three-week closing high on Monday, with exporters leading the way on a weaker yen, but The index posted its worst quarterly performance in nearly two years.
Traders also suspect the market also got a lift from window dressing by fund managers as books close for the fiscal year-end on Monday.
The benchmark Nikkei advanced 0.9 percent to 14,827.83, its highest level since March 12. On the quarter, however, the index shed 9 percent to mark its first quarterly decline in 1-1/2 years and the worst quarterly performance in seven quarters.
The broader Topix climbed 1.4 percent to 1,202.89 in relatively subdued trade, with 2.09 billion shares changing hands.
The JPX-Nikkei Index 400, a recently introduced gauge comprised of companies with a high return on equity and robust corporate governance, gained 1.4 percent to 10,893.94.
(Reporting by Tomo Uetake; Editing by Jeremy Laurence)