AECOM (ACM) Market Cap 2007–2026

As of November 13, 2026, AECOM had a market cap of $9.073 billion, which increased by 0.55% 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

AECOM (ACM)

🌍 United States 📈 NYSE 🏭 Industrials 🏢 Construction & Engineering

Latest Market Cap

$9.073B ▲ 0.55%

Start of 2026

$12.57B ▼ 27.82%

1 Year Ago

$17.72B ▼ 48.80%

All-Time High

$17.79B ▼ 49.00%

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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.

📈 AECOM Market Cap History by Year and Month

AECOM Market Cap History by Year and Month
Year / Month	Market Cap	% Change
2026	$9.073B	▼ 27.82%
November 13, 2026	$9.073B	▲ 11.30%
October 30, 2026	$8.152B	▲ 7.45%
September 30, 2026	$7.587B	▼ 12.57%
August 31, 2026	$8.678B	▼ 6.50%
July 31, 2026	$9.281B	▲ 3.72%
June 30, 2026	$8.948B	▲ 0.36%
May 29, 2026	$8.916B	▼ 17.98%
April 30, 2026	$10.87B	▼ 0.91%
March 31, 2026	$10.97B	▼ 13.42%
February 27, 2026	$12.67B	▼ 0.31%
January 30, 2026	$12.71B	▲ 1.11%
2025	$12.57B	▼ 11.28%
December 31, 2025	$12.57B	▼ 7.57%
November 28, 2025	$13.6B	▼ 23.55%
October 31, 2025	$17.79B	▲ 2.95%
September 30, 2025	$17.28B	▲ 4.47%
August 29, 2025	$16.54B	▲ 10.86%
July 31, 2025	$14.92B	▼ 0.07%
June 30, 2025	$14.93B	▲ 2.75%
May 30, 2025	$14.53B	▲ 11.60%
April 30, 2025	$13.02B	▲ 6.37%
March 31, 2025	$12.24B	▼ 7.83%
February 28, 2025	$13.28B	▼ 5.08%
January 31, 2025	$13.99B	▼ 1.26%
2024	$14.169B	▲ 12.72%
December 31, 2024	$14.169B	▼ 8.55%
November 29, 2024	$15.494B	▲ 9.45%
October 31, 2024	$14.156B	▲ 3.42%
September 30, 2024	$13.688B	▲ 1.96%
August 30, 2024	$13.426B	▲ 9.19%
July 31, 2024	$12.296B	▲ 2.48%
June 28, 2024	$11.998B	▲ 0.92%
May 31, 2024	$11.89B	▼ 5.25%
April 30, 2024	$12.549B	▼ 5.94%
March 28, 2024	$13.341B	▲ 10.41%
February 29, 2024	$12.083B	▲ 0.73%
January 31, 2024	$11.996B	▼ 4.57%
2023	$12.57B	▲ 6.74%
December 29, 2023	$12.57B	▲ 4.02%
November 30, 2023	$12.084B	▲ 15.89%
October 31, 2023	$10.427B	▼ 9.49%
September 29, 2023	$11.52B	▼ 5.37%
August 31, 2023	$12.174B	▲ 1.03%
July 31, 2023	$12.05B	▲ 2.73%
June 30, 2023	$11.73B	▲ 8.12%
May 31, 2023	$10.849B	▼ 5.83%
April 28, 2023	$11.521B	▼ 1.51%
March 31, 2023	$11.697B	▼ 2.52%
February 28, 2023	$12B	▼ 1.04%
January 31, 2023	$12.126B	▲ 2.98%
2022	$11.776B	▲ 7.71%
December 30, 2022	$11.776B	▼ 0.08%
November 30, 2022	$11.785B	▲ 12.68%
October 31, 2022	$10.459B	▲ 10.11%
September 30, 2022	$9.499B	▼ 7.02%
August 31, 2022	$10.215B	▲ 1.65%
July 29, 2022	$10.05B	▲ 10.40%
June 30, 2022	$9.103B	▼ 7.60%
May 31, 2022	$9.852B	▼ 0.80%
April 29, 2022	$9.931B	▼ 8.14%
March 31, 2022	$10.81B	▲ 5.26%
February 28, 2022	$10.27B	▲ 5.14%
January 31, 2022	$9.767B	▼ 10.66%
2021	$10.933B	▲ 47.81%
December 31, 2021	$10.933B	▲ 11.52%
November 30, 2021	$9.803B	▲ 0.15%
October 29, 2021	$9.789B	▲ 8.27%
September 30, 2021	$9.041B	▼ 4.27%
August 31, 2021	$9.445B	▲ 3.54%
July 30, 2021	$9.122B	▼ 0.57%
June 30, 2021	$9.174B	▼ 3.60%
May 28, 2021	$9.517B	▼ 2.38%
April 30, 2021	$9.749B	▲ 3.62%
March 31, 2021	$9.408B	▲ 10.02%
February 26, 2021	$8.551B	▲ 15.50%
January 29, 2021	$7.403B	▲ 0.09%
2020	$7.396B	▲ 8.41%
December 31, 2020	$7.396B	▼ 5.45%
November 30, 2020	$7.823B	▲ 11.09%
October 30, 2020	$7.042B	▲ 7.17%
September 30, 2020	$6.571B	▲ 3.69%
August 31, 2020	$6.337B	▲ 9.17%
July 31, 2020	$5.805B	▼ 3.59%
June 30, 2020	$6.021B	▼ 3.00%
May 29, 2020	$6.207B	▲ 7.72%
April 30, 2020	$5.762B	▲ 21.47%
March 31, 2020	$4.743B	▼ 33.46%
February 28, 2020	$7.128B	▼ 6.82%
January 31, 2020	$7.65B	▲ 12.13%
2019	$6.823B	▲ 64.02%
December 31, 2019	$6.823B	▲ 0.24%
November 29, 2019	$6.807B	▲ 8.03%
October 31, 2019	$6.301B	▲ 6.52%
September 30, 2019	$5.915B	▲ 5.69%
August 30, 2019	$5.596B	▼ 1.31%
July 31, 2019	$5.67B	▼ 4.78%
June 28, 2019	$5.955B	▲ 18.65%
May 31, 2019	$5.019B	▼ 5.90%
April 30, 2019	$5.334B	▲ 15.17%
March 29, 2019	$4.631B	▼ 4.17%
February 28, 2019	$4.833B	▲ 1.14%
January 31, 2019	$4.778B	▲ 14.86%
2018	$4.16B	▼ 28.96%
December 31, 2018	$4.16B	▼ 17.27%
November 30, 2018	$5.028B	▲ 9.92%
October 31, 2018	$4.574B	▼ 12.89%
September 28, 2018	$5.251B	▼ 2.91%
August 31, 2018	$5.409B	▲ 0.29%
July 31, 2018	$5.393B	▲ 1.83%
June 29, 2018	$5.296B	▲ 0.09%
May 31, 2018	$5.291B	▼ 4.13%
April 30, 2018	$5.519B	▼ 2.69%
March 29, 2018	$5.671B	▲ 0.34%
February 28, 2018	$5.652B	▼ 9.20%
January 31, 2018	$6.225B	▲ 6.31%
2017	$5.856B	▲ 3.81%
December 29, 2017	$5.856B	▼ 0.93%
November 30, 2017	$5.911B	▲ 7.02%
October 31, 2017	$5.523B	▼ 4.26%
September 29, 2017	$5.768B	▲ 9.88%
August 31, 2017	$5.25B	▲ 5.51%
July 31, 2017	$4.976B	▼ 1.33%
June 30, 2017	$5.043B	▲ 0.85%
May 31, 2017	$5B	▼ 6.02%
April 28, 2017	$5.321B	▼ 3.88%
March 31, 2017	$5.535B	▼ 1.96%
February 28, 2017	$5.646B	▼ 1.46%
January 31, 2017	$5.729B	▲ 1.57%
2016	$5.641B	▲ 23.22%
December 30, 2016	$5.641B	▲ 0.80%
November 30, 2016	$5.596B	▲ 30.56%
October 31, 2016	$4.286B	▼ 6.32%
September 30, 2016	$4.575B	▼ 3.44%
August 31, 2016	$4.738B	▼ 13.04%
July 29, 2016	$5.449B	▲ 11.83%
June 30, 2016	$4.873B	▼ 1.06%
May 31, 2016	$4.925B	▼ 0.87%
April 29, 2016	$4.968B	▲ 5.73%
March 31, 2016	$4.699B	▲ 12.13%
February 29, 2016	$4.191B	▲ 0.18%
January 29, 2016	$4.183B	▼ 8.62%
2015	$4.578B	▲ 0.68%
December 31, 2015	$4.578B	▼ 5.01%
November 30, 2015	$4.819B	▲ 8.12%
October 30, 2015	$4.458B	▲ 7.33%
September 30, 2015	$4.153B	▲ 0.04%
August 31, 2015	$4.152B	▼ 10.66%
July 31, 2015	$4.647B	▼ 6.80%
June 30, 2015	$4.986B	▲ 0.38%
May 29, 2015	$4.967B	▲ 4.90%
April 30, 2015	$4.735B	▲ 2.40%
March 31, 2015	$4.624B	▼ 1.07%
February 27, 2015	$4.674B	▲ 18.25%
January 30, 2015	$3.952B	▼ 13.08%
2014	$4.547B	▲ 61.32%
December 31, 2014	$4.547B	▼ 7.65%
November 28, 2014	$4.924B	▲ 56.40%
October 31, 2014	$3.148B	▼ 3.56%
September 30, 2014	$3.264B	▼ 13.28%
August 29, 2014	$3.764B	▲ 11.46%
July 31, 2014	$3.377B	▲ 8.79%
June 30, 2014	$3.104B	▼ 2.68%
May 30, 2014	$3.19B	▼ 0.86%
April 30, 2014	$3.218B	▲ 3.97%
March 31, 2014	$3.095B	▼ 2.19%
February 28, 2014	$3.164B	▲ 11.41%
January 31, 2014	$2.84B	▲ 0.75%
2013	$2.819B	▲ 17.33%
December 31, 2013	$2.819B	▼ 1.22%
November 29, 2013	$2.854B	▼ 6.48%
October 31, 2013	$3.052B	▲ 1.63%
September 30, 2013	$3.003B	▲ 2.26%
August 30, 2013	$2.936B	▼ 14.07%
July 31, 2013	$3.417B	▲ 4.28%
June 28, 2013	$3.277B	▲ 3.25%
May 31, 2013	$3.174B	▲ 5.92%
April 30, 2013	$2.997B	▼ 12.78%
March 28, 2013	$3.436B	▲ 8.22%
February 28, 2013	$3.175B	▲ 18.54%
January 31, 2013	$2.678B	▲ 11.49%
2012	$2.402B	▲ 1.25%
December 31, 2012	$2.402B	▼ 1.60%
November 30, 2012	$2.442B	▲ 6.24%
October 31, 2012	$2.298B	▼ 3.95%
September 28, 2012	$2.393B	▲ 9.13%
August 31, 2012	$2.193B	▲ 19.62%
July 31, 2012	$1.833B	▼ 1.31%
June 29, 2012	$1.857B	▲ 0.98%
May 31, 2012	$1.839B	▼ 26.19%
April 30, 2012	$2.492B	▼ 4.89%
March 30, 2012	$2.62B	▼ 4.20%
February 29, 2012	$2.735B	▲ 2.01%
January 31, 2012	$2.681B	▲ 12.99%
2011	$2.373B	▼ 27.30%
December 30, 2011	$2.373B	▼ 4.10%
November 30, 2011	$2.474B	▲ 4.43%
October 31, 2011	$2.369B	▲ 18.39%
September 30, 2011	$2.001B	▼ 26.26%
August 31, 2011	$2.714B	▼ 6.74%
July 29, 2011	$2.91B	▼ 9.51%
June 30, 2011	$3.216B	▼ 5.90%
May 31, 2011	$3.417B	▲ 6.75%
April 29, 2011	$3.201B	▼ 1.69%
March 31, 2011	$3.257B	▼ 4.23%
February 28, 2011	$3.4B	▼ 1.95%
January 31, 2011	$3.468B	▲ 6.27%
2010	$3.264B	▲ 5.39%
December 31, 2010	$3.264B	▲ 6.88%
November 30, 2010	$3.054B	▼ 0.12%
October 29, 2010	$3.057B	▲ 9.27%
September 30, 2010	$2.798B	▲ 7.06%
August 31, 2010	$2.613B	▼ 4.86%
July 30, 2010	$2.747B	▲ 4.68%
June 30, 2010	$2.624B	▼ 9.86%
May 28, 2010	$2.911B	▼ 14.51%
April 30, 2010	$3.405B	▲ 5.99%
March 31, 2010	$3.212B	▲ 4.01%
February 26, 2010	$3.089B	▲ 1.19%
January 29, 2010	$3.052B	▼ 1.43%
2009	$3.097B	▼ 2.27%
December 31, 2009	$3.097B	▲ 8.26%
November 30, 2009	$2.86B	▲ 2.19%
October 30, 2009	$2.799B	▼ 7.00%
September 30, 2009	$3.01B	▼ 0.47%
August 31, 2009	$3.024B	▼ 14.85%
July 31, 2009	$3.551B	▲ 1.25%
June 30, 2009	$3.507B	▲ 0.70%
May 29, 2009	$3.483B	▲ 29.03%
April 30, 2009	$2.699B	▼ 1.34%
March 31, 2009	$2.736B	▲ 6.32%
February 27, 2009	$2.573B	▼ 1.39%
January 30, 2009	$2.609B	▼ 17.64%
2008	$3.168B	▲ 11.16%
December 31, 2008	$3.168B	▲ 16.01%
November 28, 2008	$2.731B	▲ 50.26%
October 31, 2008	$1.818B	▼ 27.86%
September 30, 2008	$2.52B	▼ 23.10%
August 29, 2008	$3.277B	▲ 12.26%
July 31, 2008	$2.919B	▼ 12.48%
June 30, 2008	$3.335B	▲ 2.27%
May 30, 2008	$3.261B	▲ 17.30%
April 30, 2008	$2.78B	▲ 5.57%
March 31, 2008	$2.633B	▲ 1.39%
February 29, 2008	$2.597B	▲ 6.00%
January 31, 2008	$2.45B	▼ 14.04%
2007	$2.85B	N/A
December 31, 2007	$2.85B	▲ 8.21%
November 30, 2007	$2.634B	▼ 21.26%
October 31, 2007	$3.345B	▼ 2.61%
September 28, 2007	$3.435B	▲ 30.00%
August 31, 2007	$2.642B	▲ 3.55%
July 31, 2007	$2.552B	▲ 11.39%
June 29, 2007	$2.291B	▲ 8.34%
May 31, 2007	$2.115B	N/A

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

📊 AECOM Market Cap and Other Industry Peers

Below are selected companies for comparison based on industry, sub-industry, and sector:

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