Federal Debt Held by Federal Reserve Banks as Percent of Gross Domestic Product (HBFRGDQ188S) (https://fred.stlouisfed.org/series/HBFRGDQ188S) was first constructed by the Federal Reserve Bank of St. Louis in October 2012. It is calculated using Federal Debt Held by Federal Reserve Banks (FDHBFRBN) (https://fred.stlouisfed.org/series/FDHBFRBN) and Gross Domestic Product, 1 Decimal (GDP) (https://fred.stlouisfed.org/series/GDP): HBFRGDQ188S = (FDHBFRBN/GDP)*100

This series is found in Assets and Liabilities of FDIC-Insured Commercial Banks and Savings Institutions. The Quarterly Banking Profile is a quarterly publication that provides the earliest comprehensive summary of financial results for all FDIC-insured institutions. See Notes to Users (https://www.fdic.gov/analysis/quarterly-banking-profile/qbp/timeseries/qbpnot.pdf) for more information.