Affiliated Managers Group (AMG) Market Cap 1997–2026

As of November 13, 2026, Affiliated Managers Group had a market cap of $9.83 billion, which increased by 0.34% compared to the previous trading day. Market capitalization, often referred to as market cap, represents the total value of a company's outstanding shares on the stock market and is a common measure of its overall size and valuation.

Data updated: Nov 13, 2026, 4:00 PM ET

Affiliated Managers Group Inc. (AMG)

🌍 United States 📈 NYSE 🏭 Financial Services 🏢 Capital Markets

Latest Market Cap

$9.83B ▲ 0.34%

Start of 2026

$8.109B ▲ 21.22%

1 Year Ago

$7.288B ▲ 34.88%

All-Time High

$12.477B ▼ 21.22%

Loading data...

Note: Each point on the chart represents the market capitalization at the end of the trading day.
Source: Data compiled from EDGAR filings, Bloomberg and Yahoo Finance.

📈 Affiliated Managers Group Market Cap History by Year and Month

Affiliated Managers Group Market Cap History by Year and Month
Year / Month	Market Cap	% Change
2026	$9.83B	▲ 21.22%
November 13, 2026	$9.83B	▼ 0.92%
October 30, 2026	$9.921B	▲ 4.37%
September 30, 2026	$9.506B	▼ 0.70%
August 31, 2026	$9.573B	▼ 1.49%
July 31, 2026	$9.718B	▲ 8.36%
June 30, 2026	$8.968B	▲ 12.11%
May 29, 2026	$7.999B	▲ 1.73%
April 30, 2026	$7.863B	▲ 6.49%
March 31, 2026	$7.384B	▼ 9.62%
February 27, 2026	$8.17B	▼ 7.23%
January 30, 2026	$8.807B	▲ 8.61%
2025	$8.109B	▲ 48.15%
December 31, 2025	$8.109B	▲ 7.23%
November 28, 2025	$7.562B	▲ 11.85%
October 31, 2025	$6.761B	▼ 0.19%
September 30, 2025	$6.774B	▲ 6.04%
August 29, 2025	$6.388B	▲ 7.07%
July 31, 2025	$5.966B	▲ 6.65%
June 30, 2025	$5.594B	▲ 11.81%
May 30, 2025	$5.003B	▲ 4.95%
April 30, 2025	$4.767B	▼ 1.45%
March 31, 2025	$4.837B	▼ 3.24%
February 28, 2025	$4.999B	▼ 10.12%
January 31, 2025	$5.562B	▲ 1.61%
2024	$5.474B	▲ 6.92%
December 31, 2024	$5.474B	▼ 3.45%
November 29, 2024	$5.669B	▼ 2.86%
October 31, 2024	$5.836B	▲ 9.06%
September 30, 2024	$5.352B	▲ 3.28%
August 30, 2024	$5.182B	▼ 6.35%
July 31, 2024	$5.533B	▲ 11.17%
June 28, 2024	$4.977B	▼ 3.92%
May 31, 2024	$5.18B	▲ 2.24%
April 30, 2024	$5.067B	▼ 7.73%
March 28, 2024	$5.491B	▲ 7.14%
February 29, 2024	$5.125B	▲ 3.72%
January 31, 2024	$4.941B	▼ 3.48%
2023	$5.12B	▼ 14.22%
December 29, 2023	$5.12B	▲ 11.71%
November 30, 2023	$4.583B	▲ 9.16%
October 31, 2023	$4.198B	▼ 8.10%
September 29, 2023	$4.568B	▼ 2.74%
August 31, 2023	$4.697B	▼ 4.30%
July 31, 2023	$4.908B	▼ 7.51%
June 30, 2023	$5.306B	▲ 5.68%
May 31, 2023	$5.021B	▼ 3.66%
April 28, 2023	$5.212B	▲ 1.38%
March 31, 2023	$5.141B	▼ 10.06%
February 28, 2023	$5.716B	▼ 7.56%
January 31, 2023	$6.184B	▲ 3.62%
2022	$5.968B	▼ 9.69%
December 30, 2022	$5.968B	▼ 1.24%
November 30, 2022	$6.043B	▲ 28.76%
October 31, 2022	$4.693B	▲ 11.01%
September 30, 2022	$4.228B	▼ 13.17%
August 31, 2022	$4.869B	▲ 0.33%
July 29, 2022	$4.853B	▲ 8.39%
June 30, 2022	$4.477B	▼ 13.37%
May 31, 2022	$5.168B	▲ 5.59%
April 29, 2022	$4.895B	▼ 10.96%
March 31, 2022	$5.497B	▼ 0.13%
February 28, 2022	$5.504B	▼ 6.29%
January 31, 2022	$5.873B	▼ 11.12%
2021	$6.608B	▲ 47.68%
December 31, 2021	$6.608B	▼ 4.45%
November 30, 2021	$6.916B	▲ 0.97%
October 29, 2021	$6.85B	▲ 11.11%
September 30, 2021	$6.164B	▼ 12.06%
August 31, 2021	$7.01B	▲ 7.13%
July 30, 2021	$6.544B	▲ 2.74%
June 30, 2021	$6.369B	▼ 6.74%
May 28, 2021	$6.829B	▲ 1.56%
April 30, 2021	$6.724B	▲ 7.94%
March 31, 2021	$6.229B	▲ 4.42%
February 26, 2021	$5.966B	▲ 23.04%
January 29, 2021	$4.848B	▲ 8.35%
2020	$4.475B	▲ 9.78%
December 31, 2020	$4.475B	▲ 13.24%
November 30, 2020	$3.952B	▲ 15.59%
October 30, 2020	$3.419B	▲ 10.13%
September 30, 2020	$3.104B	▼ 2.85%
August 31, 2020	$3.196B	▼ 0.20%
July 31, 2020	$3.202B	▼ 8.23%
June 30, 2020	$3.489B	▲ 10.88%
May 29, 2020	$3.147B	▼ 4.77%
April 30, 2020	$3.305B	▲ 18.40%
March 31, 2020	$2.791B	▼ 22.48%
February 28, 2020	$3.601B	▼ 6.25%
January 31, 2020	$3.841B	▼ 5.77%
2019	$4.076B	▼ 19.53%
December 31, 2019	$4.076B	▼ 3.10%
November 29, 2019	$4.206B	▲ 6.87%
October 31, 2019	$3.936B	▼ 4.99%
September 30, 2019	$4.142B	▲ 6.75%
August 30, 2019	$3.881B	▼ 10.68%
July 31, 2019	$4.344B	▼ 7.91%
June 28, 2019	$4.718B	▲ 9.93%
May 31, 2019	$4.292B	▼ 24.43%
April 30, 2019	$5.679B	▲ 2.95%
March 29, 2019	$5.516B	▼ 3.31%
February 28, 2019	$5.705B	▲ 4.58%
January 31, 2019	$5.455B	▲ 7.71%
2018	$5.065B	▼ 55.60%
December 31, 2018	$5.065B	▼ 13.46%
November 30, 2018	$5.853B	▼ 2.23%
October 31, 2018	$5.986B	▼ 18.05%
September 28, 2018	$7.305B	▼ 6.41%
August 31, 2018	$7.806B	▼ 11.47%
July 31, 2018	$8.817B	▲ 9.17%
June 29, 2018	$8.076B	▼ 6.65%
May 31, 2018	$8.651B	▼ 3.40%
April 30, 2018	$8.955B	▼ 13.02%
March 29, 2018	$10.296B	▼ 0.23%
February 28, 2018	$10.32B	▼ 6.18%
January 31, 2018	$11B	▼ 3.58%
2017	$11.408B	▲ 43.22%
December 29, 2017	$11.408B	▲ 3.31%
November 30, 2017	$11.042B	▲ 6.49%
October 31, 2017	$10.369B	▼ 2.39%
September 29, 2017	$10.623B	▲ 7.44%
August 31, 2017	$9.888B	▼ 4.82%
July 31, 2017	$10.388B	▲ 12.04%
June 30, 2017	$9.272B	▲ 6.47%
May 31, 2017	$8.708B	▼ 7.09%
April 28, 2017	$9.372B	▲ 0.83%
March 31, 2017	$9.295B	▼ 2.38%
February 28, 2017	$9.522B	▲ 10.22%
January 31, 2017	$8.639B	▲ 8.45%
2016	$7.965B	▼ 7.33%
December 30, 2016	$7.965B	▼ 1.89%
November 30, 2016	$8.119B	▲ 11.88%
October 31, 2016	$7.257B	▼ 8.32%
September 30, 2016	$7.915B	▲ 3.44%
August 31, 2016	$7.652B	▼ 3.10%
July 29, 2016	$7.897B	▲ 4.27%
June 30, 2016	$7.573B	▼ 18.89%
May 31, 2016	$9.337B	▲ 1.88%
April 29, 2016	$9.165B	▲ 4.90%
March 31, 2016	$8.737B	▲ 16.68%
February 29, 2016	$7.488B	▲ 3.72%
January 29, 2016	$7.219B	▼ 16.01%
2015	$8.595B	▼ 25.83%
December 31, 2015	$8.595B	▼ 10.26%
November 30, 2015	$9.578B	▼ 2.69%
October 30, 2015	$9.842B	▲ 5.42%
September 30, 2015	$9.336B	▼ 7.75%
August 31, 2015	$10.12B	▼ 10.32%
July 31, 2015	$11.285B	▼ 5.45%
June 30, 2015	$11.936B	▼ 2.48%
May 29, 2015	$12.239B	▼ 1.09%
April 30, 2015	$12.374B	▲ 5.52%
March 31, 2015	$11.727B	▼ 1.30%
February 27, 2015	$11.881B	▲ 5.88%
January 30, 2015	$11.221B	▼ 3.17%
2014	$11.588B	▲ 1.01%
December 31, 2014	$11.588B	▲ 2.43%
November 28, 2014	$11.313B	▲ 1.94%
October 31, 2014	$11.098B	▼ 0.28%
September 30, 2014	$11.13B	▼ 5.11%
August 29, 2014	$11.729B	▲ 5.97%
July 31, 2014	$11.068B	▼ 2.52%
June 30, 2014	$11.355B	▲ 8.91%
May 30, 2014	$10.426B	▼ 4.84%
April 30, 2014	$10.956B	▼ 0.75%
March 31, 2014	$11.039B	▲ 10.22%
February 28, 2014	$10.016B	▼ 4.97%
January 31, 2014	$10.54B	▼ 8.13%
2013	$11.473B	▲ 68.87%
December 31, 2013	$11.473B	▲ 8.14%
November 29, 2013	$10.609B	▲ 1.67%
October 31, 2013	$10.435B	▲ 8.10%
September 30, 2013	$9.653B	▲ 4.77%
August 30, 2013	$9.213B	▼ 3.14%
July 31, 2013	$9.512B	▲ 10.01%
June 28, 2013	$8.646B	▼ 0.04%
May 31, 2013	$8.649B	▲ 5.34%
April 30, 2013	$8.211B	▲ 1.64%
March 28, 2013	$8.078B	▲ 5.06%
February 28, 2013	$7.689B	▲ 2.34%
January 31, 2013	$7.513B	▲ 10.59%
2012	$6.794B	▲ 37.57%
December 31, 2012	$6.794B	▲ 1.77%
November 30, 2012	$6.675B	▲ 2.77%
October 31, 2012	$6.496B	▲ 2.85%
September 28, 2012	$6.316B	▲ 4.57%
August 31, 2012	$6.04B	▲ 5.38%
July 31, 2012	$5.731B	▲ 1.96%
June 29, 2012	$5.621B	▲ 6.19%
May 31, 2012	$5.294B	▼ 9.29%
April 30, 2012	$5.836B	▲ 1.36%
March 30, 2012	$5.757B	▲ 4.55%
February 29, 2012	$5.507B	▲ 1.65%
January 31, 2012	$5.417B	▲ 9.70%
2011	$4.939B	▼ 7.72%
December 30, 2011	$4.939B	▲ 1.46%
November 30, 2011	$4.868B	▲ 0.96%
October 31, 2011	$4.821B	▲ 18.65%
September 30, 2011	$4.063B	▼ 10.45%
August 31, 2011	$4.538B	▼ 16.44%
July 29, 2011	$5.43B	▲ 2.84%
June 30, 2011	$5.28B	▼ 4.05%
May 31, 2011	$5.503B	▼ 2.83%
April 29, 2011	$5.663B	▼ 0.27%
March 31, 2011	$5.678B	▲ 2.47%
February 28, 2011	$5.541B	▲ 0.89%
January 31, 2011	$5.493B	▲ 2.63%
2010	$5.352B	▲ 73.50%
December 31, 2010	$5.352B	▲ 18.73%
November 30, 2010	$4.508B	▲ 3.04%
October 29, 2010	$4.375B	▲ 9.74%
September 30, 2010	$3.986B	▲ 21.49%
August 31, 2010	$3.281B	▲ 3.98%
July 30, 2010	$3.155B	▲ 16.55%
June 30, 2010	$2.707B	▼ 15.18%
May 28, 2010	$3.192B	▼ 10.51%
April 30, 2010	$3.567B	▲ 6.56%
March 31, 2010	$3.347B	▲ 11.09%
February 26, 2010	$3.013B	▲ 8.61%
January 29, 2010	$2.774B	▼ 10.07%
2009	$3.085B	▲ 79.12%
December 31, 2009	$3.085B	▲ 12.49%
November 30, 2009	$2.742B	▲ 3.62%
October 30, 2009	$2.646B	▼ 2.34%
September 30, 2009	$2.71B	▼ 0.49%
August 31, 2009	$2.723B	▼ 0.06%
July 31, 2009	$2.725B	▲ 13.46%
June 30, 2009	$2.402B	▲ 3.71%
May 29, 2009	$2.316B	▼ 1.30%
April 30, 2009	$2.346B	▲ 36.96%
March 31, 2009	$1.713B	▲ 15.93%
February 27, 2009	$1.478B	▼ 10.50%
January 30, 2009	$1.651B	▼ 4.13%
2008	$1.722B	▼ 50.97%
December 31, 2008	$1.722B	▲ 49.71%
November 28, 2008	$1.15B	▼ 39.27%
October 31, 2008	$1.894B	▼ 44.02%
September 30, 2008	$3.384B	▼ 12.99%
August 29, 2008	$3.889B	▲ 9.94%
July 31, 2008	$3.537B	▼ 4.06%
June 30, 2008	$3.687B	▼ 12.14%
May 30, 2008	$4.196B	▲ 8.17%
April 30, 2008	$3.879B	▲ 9.48%
March 31, 2008	$3.543B	▲ 0.92%
February 29, 2008	$3.511B	▲ 19.35%
January 31, 2008	$2.942B	▼ 16.24%
2007	$3.512B	▲ 10.73%
December 31, 2007	$3.512B	▼ 5.46%
November 30, 2007	$3.715B	▼ 5.55%
October 31, 2007	$3.933B	▲ 4.39%
September 28, 2007	$3.768B	▲ 12.59%
August 31, 2007	$3.347B	▲ 0.22%
July 31, 2007	$3.339B	▼ 12.95%
June 29, 2007	$3.836B	▼ 1.11%
May 31, 2007	$3.879B	▲ 10.69%
April 30, 2007	$3.504B	▲ 7.98%
March 30, 2007	$3.245B	▼ 4.53%
February 28, 2007	$3.399B	▲ 3.08%
January 31, 2007	$3.297B	▲ 3.96%
2006	$3.172B	▲ 16.42%
December 29, 2006	$3.172B	▲ 2.96%
November 30, 2006	$3.081B	▲ 1.97%
October 31, 2006	$3.021B	▼ 1.08%
September 29, 2006	$3.054B	▲ 8.19%
August 31, 2006	$2.823B	▲ 1.07%
July 31, 2006	$2.793B	▲ 5.36%
June 30, 2006	$2.651B	▼ 6.16%
May 31, 2006	$2.825B	▼ 10.96%
April 28, 2006	$3.173B	▼ 4.98%
March 31, 2006	$3.339B	▼ 0.08%
February 28, 2006	$3.342B	▲ 6.07%
January 31, 2006	$3.151B	▲ 15.64%
2005	$2.724B	▲ 35.65%
December 30, 2005	$2.724B	▲ 1.79%
November 30, 2005	$2.677B	▲ 2.72%
October 31, 2005	$2.606B	▲ 5.98%
September 30, 2005	$2.459B	▼ 1.22%
August 31, 2005	$2.489B	▲ 1.84%
July 29, 2005	$2.444B	▲ 4.35%
June 30, 2005	$2.342B	▲ 4.80%
May 31, 2005	$2.235B	▲ 6.67%
April 29, 2005	$2.095B	▲ 0.81%
March 31, 2005	$2.079B	▲ 8.25%
February 28, 2005	$1.92B	▲ 2.13%
January 31, 2005	$1.88B	▼ 6.39%
2004	$2.008B	▲ 35.33%
December 31, 2004	$2.008B	▲ 6.88%
November 30, 2004	$1.879B	▲ 13.50%
October 29, 2004	$1.656B	▲ 4.30%
September 30, 2004	$1.587B	▲ 11.64%
August 31, 2004	$1.422B	▲ 6.84%
July 30, 2004	$1.331B	▼ 8.85%
June 30, 2004	$1.46B	▲ 3.32%
May 28, 2004	$1.413B	▲ 0.14%
April 30, 2004	$1.411B	▼ 10.77%
March 31, 2004	$1.582B	▼ 12.23%
February 27, 2004	$1.802B	▼ 0.35%
January 30, 2004	$1.809B	▲ 21.86%
2003	$1.484B	▲ 35.64%
December 31, 2003	$1.484B	▲ 4.65%
November 28, 2003	$1.418B	▼ 8.25%
October 31, 2003	$1.546B	▲ 15.45%
September 30, 2003	$1.339B	▼ 7.00%
August 29, 2003	$1.44B	▲ 3.70%
July 31, 2003	$1.388B	▲ 7.33%
June 30, 2003	$1.293B	▲ 11.84%
May 30, 2003	$1.156B	▲ 19.03%
April 30, 2003	$0.972B	▲ 11.40%
March 31, 2003	$0.872B	▼ 5.47%
February 28, 2003	$0.923B	▼ 8.68%
January 31, 2003	$1.01B	▼ 7.67%
2002	$1.094B	▼ 30.07%
December 31, 2002	$1.094B	▼ 7.72%
November 29, 2002	$1.186B	▲ 4.44%
October 31, 2002	$1.135B	▲ 16.39%
September 30, 2002	$0.975B	▼ 14.92%
August 30, 2002	$1.147B	▲ 11.04%
July 31, 2002	$1.033B	▼ 24.12%
June 28, 2002	$1.361B	▼ 11.38%
May 31, 2002	$1.536B	▲ 9.19%
April 30, 2002	$1.406B	▼ 12.04%
March 28, 2002	$1.599B	▲ 8.10%
February 28, 2002	$1.479B	▼ 3.13%
January 31, 2002	$1.527B	▼ 2.41%
2001	$1.565B	▲ 28.21%
December 31, 2001	$1.565B	▲ 3.91%
November 30, 2001	$1.506B	▲ 10.77%
October 31, 2001	$1.359B	▲ 7.99%
September 28, 2001	$1.259B	▼ 19.87%
August 31, 2001	$1.571B	▲ 4.73%
July 31, 2001	$1.5B	▲ 10.48%
June 29, 2001	$1.358B	▲ 9.78%
May 31, 2001	$1.237B	▼ 0.33%
April 30, 2001	$1.241B	▲ 19.62%
March 30, 2001	$1.037B	▼ 8.57%
February 28, 2001	$1.135B	▼ 16.26%
January 31, 2001	$1.355B	▲ 11.03%
2000	$1.22B	▲ 31.64%
December 29, 2000	$1.22B	▲ 24.19%
November 30, 2000	$0.983B	▼ 26.46%
October 31, 2000	$1.336B	▲ 6.14%
September 29, 2000	$1.259B	▲ 2.13%
August 31, 2000	$1.233B	▲ 17.56%
July 31, 2000	$1.049B	▲ 4.26%
June 30, 2000	$1.006B	▲ 35.33%
May 31, 2000	$0.743B	▼ 17.38%
April 28, 2000	$0.9B	▼ 15.53%
March 31, 2000	$1.065B	▲ 18.16%
February 29, 2000	$0.901B	▲ 13.54%
January 31, 2000	$0.794B	▼ 14.37%
1999	$0.927B	▲ 77.13%
December 31, 1999	$0.927B	▲ 35.06%
November 30, 1999	$0.686B	▲ 11.21%
October 29, 1999	$0.617B	▼ 1.83%
September 30, 1999	$0.629B	▲ 1.23%
August 31, 1999	$0.621B	▼ 9.15%
July 30, 1999	$0.684B	▼ 2.69%
June 30, 1999	$0.703B	▲ 3.21%
May 28, 1999	$0.681B	▲ 0.65%
April 30, 1999	$0.676B	▲ 11.78%
March 31, 1999	$0.605B	▲ 32.84%
February 26, 1999	$0.456B	▼ 21.36%
January 29, 1999	$0.579B	▲ 10.67%
1998	$0.523B	▲ 2.01%
December 31, 1998	$0.523B	▲ 1.53%
November 30, 1998	$0.516B	▲ 20.51%
October 30, 1998	$0.428B	▲ 23.61%
September 30, 1998	$0.346B	▲ 10.32%
August 31, 1998	$0.314B	▼ 45.70%
July 31, 1998	$0.578B	▼ 11.95%
June 30, 1998	$0.656B	▲ 3.55%
May 29, 1998	$0.634B	▼ 3.54%
April 30, 1998	$0.657B	▲ 6.45%
March 31, 1998	$0.617B	▼ 5.74%
February 27, 1998	$0.655B	▲ 22.57%
January 30, 1998	$0.534B	▲ 4.09%
1997	$0.513B	N/A
December 31, 1997	$0.513B	N/A

All market cap values reflect closing prices for the period shown.

📊 Affiliated Managers Group Market Cap and Other Industry Peers

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Note: Market capitalization figures are based on available sources and may differ slightly from actual values, particularly for historical data.