A large amount of cash flowed into the Federal Reserve's reverse repo tool on Tuesday, the last trading day of 2024, pushing the usage of this tool to its highest level since early summer. Money market funds and other eligible institutions deposited $473.5 billion on the Fed's balance sheet. This surge in usage is not surprising, as at the end of quarters and years, companies often make brief adjustments to manage their balance sheets, leading to significant cash inflows to the Fed. The cash inflow on Tuesday was the highest since $664.6 billion flowed in on the last trading day of the second quarter and also exceeded the $465.6 billion at the end of the third quarter on September 30.