This series has been discontinued and will no longer be updated. It was a duplicate of the following series, which will continue to be updated: https://fred.stlouisfed.org/series/WSHONBIIL The current face value of the Federal Reserve's outright holdings of inflation-indexed Treasury notes and bonds.
This series is in the H.4.1 Factors Affecting Reserve Balances statistical press release and is available in FRED as WSHONBIIL (https://fred.stlouisfed.org/series/WSHONBIIL). Data before Wednesday, April 27, 1921 represent weekly values as of Friday. Authors: Cecilia Bao, Justin Chen, Nicholas Fries, Andrew Gibson, Emma Paine, and Kurt Schuler Studies in Applied Economics no. 115, Johns Hopkins University Institute for Applied Economics, Global Health, and the Study of Business Enterprise, July 2018; co-published with the Center for Financial Stability