These consolidated financial statements are prepared in accordance with accounting principles generally accepted in the United States (U.S. GAAP) and include the accounts of Group Inc. and all other entities in which the firm has a controlling financial interest. Intercompany transactions and balances have been eliminated.

Basis of Presentation	9 Months Ended
Sep. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Note 2. Basis of Presentation These consolidated financial statements are prepared in accordance with accounting principles generally accepted in the United States (U.S. GAAP) and include the accounts of Group Inc. and all other entities in which the firm has a controlling financial interest. Intercompany transactions and balances have been eliminated. These consolidated financial statements are unaudited and should be read in conjunction with the audited consolidated financial statements included in the firm’s Annual Report on Form 10-K for the year ended December 31, 2020. References to “the 2020 Form 10-K” are to the firm’s Annual Report on Form 10-K for the year ended December 31, 2020. Certain disclosures included in the annual financial statements have been condensed or omitted from these financial statements as they are not required for interim financial statements under U.S. GAAP and the rules of the Securities and Exchange Commission. These unaudited consolidated financial statements reflect all adjustments that are, in the opinion of management, necessary for a fair statement of the results for the interim periods presented. These adjustments are of a normal, recurring nature. Interim period operating results may not be indicative of the operating results for a full year. All references to September 2021, June 2021 and September 2020 refer to the firm’s periods ended, or the dates, as the context requires, September 30, 2021, June 30, 2021 and September 30, 2020, respectively. All references to December 2020 refer to the date December 31, 2020. Any reference to a future year refers to a year ending on December 31 of that year. Certain reclassifications have been made to previously reported amounts to conform to the current presentation. In the fourth quarter of 2020, brokerage, clearing, exchange and distribution fees was renamed transaction based and additionally includes expenses resulting from completed transactions, which are directly related to client revenues. Such expenses were previously reported in other expenses. Previously reported amounts have been conformed to the current presentation.

These consolidated financial statements are unaudited and should be read in conjunction with the audited consolidated financial statements included in the firm’s Annual Report on

Form 10-K

for the year ended December 31, 2020. References to “the 2020

Form 10-K”

are to the firm’s Annual Report on

Form 10-K

for the year ended December 31, 2020. Certain disclosures included in the annual financial statements have been condensed or omitted from these financial statements as they are not required for interim financial statements under U.S. GAAP and the rules of the Securities and Exchange Commission.

These unaudited consolidated financial statements reflect all adjustments that are, in the opinion of management, necessary for a fair statement of the results for the interim periods presented. These adjustments are of a normal, recurring nature. Interim period operating results may not be indicative of the operating results for a full year.

All references to September 2021, June 2021 and September 2020 refer to the firm’s periods ended, or the dates, as the context requires, September 30, 2021, June 30, 2021 and September 30, 2020, respectively. All references to December 2020 refer to the date December 31, 2020. Any reference to a future year refers to a year ending on December 31 of that year. Certain reclassifications have been made to previously reported amounts to conform to the current presentation.

In the fourth quarter of 2020, brokerage, clearing, exchange and distribution fees was renamed transaction based and additionally includes expenses resulting from completed transactions, which are directly related to client revenues. Such expenses were previously reported in other expenses. Previously reported amounts have been conformed to the current presentation.