Japanese shares jumped more than 1 per cent Monday as US President Barack Obama announced a deal with congressional leaders to allow the federal debt limit to be lifted to avert a default. The benchmark Nikkei 225 Stock Average gained 131.98 points, or 1.34 per cent, to close at 9,965.01 while the broader-based Topix index was up 10.33 points, or 1.23 per cent, at 851.7. Tokyo stocks surged in the morning with export-oriented issues bolstered by the US debt limit deal.