Board of Governors of the Federal Reserve System The Federal Reserve, the central bank of the United States, provides the nation with a safe, flexible, and stable monetary and financial system. Main Menu Toggle Button Sections Search Toggle Button Graph and download economic data for Bank Prime Loan Rate (MPRIME) from Jan 1949 to Feb 2020 about prime, loans, banks, depository institutions, interest rate, interest, rate, and USA. Board of Governors of the Federal Reserve System (US), Bank Prime Loan Rate [MPRIME], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred Board of Governors of the Federal Reserve System The Federal Reserve, the central bank of the United States, provides the nation with a safe, flexible, and stable monetary and financial system. Main Menu Toggle Button Sections Search Toggle Button