THE ISEQ index jumped 34.88 points to end the day at 2,815.48.
Markets throughout the world performed strongly on upbeat Chinese factory data.
Chinese factories increased production by a larger-than-expected 13.9% in August, as the economy continues to perform strongly despite government efforts to reduce bank lending.
In the financial sector, stocks gained after new global banking rules allowed for extended deadlines for raising capital. Bank of Ireland added 3.7c to 71.9c. AIB rose 3.6c to 78.3c after it announced late on Friday it had disposed of its stake in Polish bank BZWBK.
Irish Life & Permanent progressed 9.6c to €1.69, while insurance Group FBD Holdings increased 10c to €6.74.
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