[U.S. Treasury Yields Rise, Influenced by Corporate Debt Issuance and Adjustments to Rate Cut Expectations] U.S. Treasury yields rose on Monday, primarily driven by high corporate debt issuance and adjustments in market expectations for rate cuts. Previously, Federal Reserve Chair Jerome Powell expressed caution regarding the possibility of further monetary policy easing this year, cooling market expectations. Additionally, the U.S. government shutdown that began on October 1 could become the longest in history, obstructing the release of key economic data and increasing uncertainty for policymakers and investors in assessing inflation and the labor market. MassMutual Investment Strategy Director Kelly Kowalski stated that the market had previously anticipated significant rate cuts by the Federal Reserve, but Powell's remarks have raised doubts about the extent of rate cuts next year and the Fed's stance, while the lack of data has further exacerbated market uncertainty.