Japanese government bond futures saw a modest increase during the morning session in Tokyo, as investors assessed the preliminary GDP data for the fourth quarter released earlier. On one hand, the 0.1% GDP growth fell short of the 0.4% expansion forecast by economists in a survey by data provider Quick, potentially fueling speculation that the Bank of Japan may slow its pace of interest rate hikes. On the other hand, the data could prompt the Japanese government to introduce additional economic stimulus measures, which may worsen the country's fiscal health. The ten-year Japanese government bond futures rose by 0.19 yen to 131.99 yen.