In 2022, PwC had the highest market share of S&P 500 audit fees out of the Big Four. This was a share of almost ** percent. EY were second in the list with roughly ** percent. In total, the Big Four constituted **** percent of the S&P market share when it came to audit fees. The remaining *** percent came from Grant Thornton and BDO.
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Ideagen. (August 14, 2023). S&P 500 audit fee market share of the Big Four in FY 2022 [Graph]. In Statista. Retrieved June 29, 2025, from https://www.statista.com/statistics/1463382/big-four-sandp-500-audit-market-share/
Ideagen. "S&P 500 audit fee market share of the Big Four in FY 2022." Chart. August 14, 2023. Statista. Accessed June 29, 2025. https://www.statista.com/statistics/1463382/big-four-sandp-500-audit-market-share/
Ideagen. (2023). S&P 500 audit fee market share of the Big Four in FY 2022. Statista. Statista Inc.. Accessed: June 29, 2025. https://www.statista.com/statistics/1463382/big-four-sandp-500-audit-market-share/
Ideagen. "S&p 500 Audit Fee Market Share of The Big Four in Fy 2022." Statista, Statista Inc., 14 Aug 2023, https://www.statista.com/statistics/1463382/big-four-sandp-500-audit-market-share/
Ideagen, S&P 500 audit fee market share of the Big Four in FY 2022 Statista, https://www.statista.com/statistics/1463382/big-four-sandp-500-audit-market-share/ (last visited June 29, 2025)
S&P 500 audit fee market share of the Big Four in FY 2022 [Graph], Ideagen, August 14, 2023. [Online]. Available: https://www.statista.com/statistics/1463382/big-four-sandp-500-audit-market-share/
