Federal Reserve Bank of Chicago. "2020 Annual Report : Financial Statements As Of and For the Years Ended December 31, 2020 and 2019 and Independent Auditors' Report," Annual Report of the Federal Reserve Bank of Chicago (2021). https://fraser.stlouisfed.org/title/472/item/632552/content/pdf/chicagofinstmt2020, accessed on October 8, 2026.