although the increase in US PPI in December was lower than expected, inflation anxiety still shrouds the market. On Tuesday, the 30-year US Treasury bond yield hit a new high in the near term above 5%. The 30-year yield broke through 5% for the second time since last Friday, and the 10-year yield rose to 4.81%, both reaching their highest levels since November 2023. Due to market concerns that stubborn inflation may prompt the Fed to stop cutting interest rates, US bond yields have continued to rise in recent weeks, and short-term bond yields have recovered lost ground since the release of PPI, remaining basically flat compared to the previous day.