周三（6月18日），美联储隔夜逆回购协议（RRP）使用规模为2050.50亿美元，上个交易日报1689.39亿美元。

Core Points - The Federal Reserve's overnight reverse repurchase agreement (RRP) usage reached $205.50 billion on June 18, compared to $168.93 billion in the previous trading day [1] Group 1 - The increase in RRP usage indicates a growing demand for liquidity management tools among financial institutions [1] - The significant rise from the previous day suggests potential shifts in market conditions or investor sentiment [1] - Monitoring RRP levels can provide insights into broader monetary policy impacts and financial market stability [1]