The Nikkei stock index briefly surpassed the 70,000 mark on Monday, a milestone not reached since early July. This movement was driven by major technology shares.

Further information on this development is available from the source. The index's performance is notable as it had not exceeded 70,000 since July.

Details of the specific factors contributing to the index's brief rise above 70,000 are not provided here, but the source offers additional context on the event.