Source: U.S. Bureau of Economic Analysis
Release: U.S. International Transactions
This series has been discontinued as a result of the comprehensive restructuring of the international economic accounts (http://www.bea.gov/international/modern.htm). For a crosswalk of the old and new series in FRED see: http://research.stlouisfed.org/CompRevisionReleaseID49.xlsx.
U.S. Bureau of Economic Analysis, Foreign Official Assets in U.S.: Treasury Securities (DISCONTINUED) [BOPIOGTN], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/BOPIOGTN, October 23, 2017.