美国隔夜回购利率因美联储购债计划而趋于回落至4%。

Core Viewpoint - The overnight repurchase rate in the U.S. has decreased to 4% due to the Federal Reserve's bond purchasing program [1] Group 1 - The Federal Reserve's actions are influencing the liquidity in the financial markets, leading to a decline in the overnight repurchase rate [1]