Interactive Brokers Group (IBKR) Market Cap 2007–2026

As of November 13, 2026, Interactive Brokers Group had a market cap of $37.06 billion, which increased by 0.57% 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

Interactive Brokers Group Inc. (IBKR)

🌍 United States 📈 NASDAQ 🏭 Financial Services 🏢 Capital Markets

Latest Market Cap

$37.06B ▲ 0.57%

Start of 2026

$28.64B ▲ 29.40%

1 Year Ago

$29.86B ▲ 24.11%

All-Time High

$44.24B ▼ 16.23%

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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.

📈 Interactive Brokers Group Market Cap History by Year and Month

Interactive Brokers Group Market Cap History by Year and Month
Year / Month	Market Cap	% Change
2026	$37.06B	▲ 29.40%
November 13, 2026	$37.06B	▲ 6.96%
October 30, 2026	$34.65B	▼ 9.98%
September 30, 2026	$38.49B	▼ 12.20%
August 31, 2026	$43.84B	▲ 11.84%
July 31, 2026	$39.2B	▲ 1.11%
June 30, 2026	$38.77B	▲ 0.08%
May 29, 2026	$38.74B	▲ 9.34%
April 30, 2026	$35.43B	▲ 18.57%
March 31, 2026	$29.88B	▼ 5.77%
February 27, 2026	$31.71B	▼ 4.92%
January 30, 2026	$33.35B	▲ 16.45%
2025	$28.64B	▲ 48.85%
December 31, 2025	$28.64B	▼ 1.10%
November 28, 2025	$28.96B	▼ 7.56%
October 31, 2025	$31.33B	▲ 2.25%
September 30, 2025	$30.64B	▲ 10.57%
August 29, 2025	$27.71B	▼ 4.25%
July 31, 2025	$28.94B	▲ 19.83%
June 30, 2025	$24.15B	▲ 5.69%
May 30, 2025	$22.85B	▲ 22.06%
April 30, 2025	$18.72B	▲ 3.77%
March 31, 2025	$18.04B	▼ 18.99%
February 28, 2025	$22.27B	▼ 5.95%
January 31, 2025	$23.68B	▲ 23.08%
2024	$19.24B	▲ 116.88%
December 31, 2024	$19.24B	▼ 7.52%
November 29, 2024	$20.806B	▲ 25.25%
October 31, 2024	$16.611B	▲ 9.49%
September 30, 2024	$15.172B	▲ 8.16%
August 30, 2024	$14.028B	▲ 8.41%
July 31, 2024	$12.939B	▼ 1.47%
June 28, 2024	$13.132B	▼ 2.48%
May 31, 2024	$13.466B	▲ 9.22%
April 30, 2024	$12.329B	▲ 3.05%
March 28, 2024	$11.964B	▲ 2.79%
February 29, 2024	$11.64B	▲ 22.52%
January 31, 2024	$9.5B	▲ 7.09%
2023	$8.872B	▲ 19.20%
December 29, 2023	$8.872B	▲ 6.50%
November 30, 2023	$8.33B	▼ 2.76%
October 31, 2023	$8.567B	▼ 7.48%
September 29, 2023	$9.26B	▼ 4.96%
August 31, 2023	$9.743B	▲ 6.94%
July 31, 2023	$9.111B	▲ 5.13%
June 30, 2023	$8.667B	▲ 8.96%
May 31, 2023	$7.954B	▼ 0.79%
April 28, 2023	$8.017B	▼ 5.70%
March 31, 2023	$8.502B	▼ 4.14%
February 28, 2023	$8.869B	▲ 7.84%
January 31, 2023	$8.225B	▲ 10.51%
2022	$7.443B	▼ 4.57%
December 30, 2022	$7.443B	▼ 9.90%
November 30, 2022	$8.261B	▲ 0.19%
October 31, 2022	$8.245B	▲ 25.41%
September 30, 2022	$6.574B	▲ 3.79%
August 31, 2022	$6.334B	▲ 8.40%
July 29, 2022	$5.843B	▲ 6.69%
June 30, 2022	$5.477B	▼ 9.43%
May 31, 2022	$6.047B	▲ 3.34%
April 29, 2022	$5.852B	▼ 9.63%
March 31, 2022	$6.475B	▼ 0.44%
February 28, 2022	$6.504B	▼ 2.87%
January 31, 2022	$6.697B	▼ 14.14%
2021	$7.799B	▲ 41.04%
December 31, 2021	$7.799B	▲ 7.62%
November 30, 2021	$7.247B	▲ 4.20%
October 29, 2021	$6.955B	▲ 13.65%
September 30, 2021	$6.119B	▼ 3.54%
August 31, 2021	$6.344B	▲ 11.42%
July 30, 2021	$5.694B	▼ 5.89%
June 30, 2021	$6.05B	▼ 0.95%
May 28, 2021	$6.108B	▼ 5.95%
April 30, 2021	$6.495B	▼ 2.08%
March 31, 2021	$6.633B	▲ 0.87%
February 26, 2021	$6.575B	▲ 18.38%
January 29, 2021	$5.554B	▲ 0.44%
2020	$5.53B	▲ 54.55%
December 31, 2020	$5.53B	▲ 15.47%
November 30, 2020	$4.789B	▲ 27.34%
October 30, 2020	$3.761B	▼ 1.57%
September 30, 2020	$3.821B	▼ 7.67%
August 31, 2020	$4.138B	▲ 6.90%
July 31, 2020	$3.871B	▲ 18.75%
June 30, 2020	$3.26B	▲ 0.30%
May 29, 2020	$3.25B	▲ 3.29%
April 30, 2020	$3.147B	▼ 5.03%
March 31, 2020	$3.313B	▼ 15.52%
February 28, 2020	$3.922B	▲ 8.73%
January 31, 2020	$3.607B	▲ 0.82%
2019	$3.578B	▼ 12.82%
December 31, 2019	$3.578B	▼ 3.72%
November 29, 2019	$3.716B	▲ 1.79%
October 31, 2019	$3.651B	▼ 11.55%
September 30, 2019	$4.128B	▲ 13.94%
August 30, 2019	$3.622B	▼ 7.90%
July 31, 2019	$3.933B	▼ 3.38%
June 28, 2019	$4.071B	▲ 6.69%
May 31, 2019	$3.815B	▼ 6.34%
April 30, 2019	$4.074B	▲ 4.55%
March 29, 2019	$3.896B	▼ 6.07%
February 28, 2019	$4.148B	▲ 9.58%
January 31, 2019	$3.785B	▼ 7.78%
2018	$4.104B	▼ 3.02%
December 31, 2018	$4.104B	▼ 5.53%
November 30, 2018	$4.344B	▲ 17.08%
October 31, 2018	$3.711B	▼ 10.65%
September 28, 2018	$4.153B	▼ 11.02%
August 31, 2018	$4.667B	▲ 6.02%
July 31, 2018	$4.402B	▼ 4.38%
June 29, 2018	$4.604B	▼ 11.50%
May 31, 2018	$5.202B	▼ 1.91%
April 30, 2018	$5.304B	▲ 10.36%
March 29, 2018	$4.806B	▼ 3.11%
February 28, 2018	$4.96B	▲ 8.45%
January 31, 2018	$4.574B	▲ 8.07%
2017	$4.232B	▲ 70.51%
December 29, 2017	$4.232B	▲ 3.77%
November 30, 2017	$4.078B	▲ 5.63%
October 31, 2017	$3.861B	▲ 19.95%
September 29, 2017	$3.219B	▲ 7.42%
August 31, 2017	$2.997B	▲ 6.50%
July 31, 2017	$2.814B	▲ 7.03%
June 30, 2017	$2.629B	▲ 10.85%
May 31, 2017	$2.371B	▲ 0.14%
April 28, 2017	$2.368B	▲ 0.32%
March 31, 2017	$2.361B	▼ 5.42%
February 28, 2017	$2.496B	▼ 1.69%
January 31, 2017	$2.539B	▲ 2.28%
2016	$2.482B	▼ 11.03%
December 30, 2016	$2.482B	▼ 0.57%
November 30, 2016	$2.496B	▲ 10.64%
October 31, 2016	$2.256B	▼ 5.90%
September 30, 2016	$2.398B	▼ 0.66%
August 31, 2016	$2.414B	▲ 5.49%
July 29, 2016	$2.288B	▼ 1.58%
June 30, 2016	$2.325B	▼ 9.58%
May 31, 2016	$2.571B	▲ 5.74%
April 29, 2016	$2.432B	▼ 3.36%
March 31, 2016	$2.516B	▲ 15.08%
February 29, 2016	$2.186B	▲ 5.89%
January 29, 2016	$2.065B	▼ 25.99%
2015	$2.79B	▲ 63.62%
December 31, 2015	$2.79B	▲ 1.04%
November 30, 2015	$2.761B	▲ 5.78%
October 30, 2015	$2.61B	▲ 4.23%
September 30, 2015	$2.504B	▼ 0.55%
August 31, 2015	$2.518B	▲ 4.15%
July 31, 2015	$2.418B	▼ 3.39%
June 30, 2015	$2.503B	▲ 19.87%
May 29, 2015	$2.088B	▲ 5.15%
April 30, 2015	$1.985B	▼ 0.21%
March 31, 2015	$1.989B	▲ 6.76%
February 27, 2015	$1.864B	▲ 4.05%
January 30, 2015	$1.791B	▲ 5.04%
2014	$1.705B	▲ 28.15%
December 31, 2014	$1.705B	▲ 6.75%
November 28, 2014	$1.597B	▲ 8.32%
October 31, 2014	$1.474B	▲ 3.49%
September 30, 2014	$1.425B	▲ 6.45%
August 29, 2014	$1.338B	▲ 1.85%
July 31, 2014	$1.314B	▼ 1.18%
June 30, 2014	$1.33B	▲ 5.67%
May 30, 2014	$1.258B	▼ 3.68%
April 30, 2014	$1.307B	▲ 10.29%
March 31, 2014	$1.185B	▼ 2.56%
February 28, 2014	$1.216B	▲ 4.91%
January 31, 2014	$1.159B	▼ 12.90%
2013	$1.331B	▲ 104.76%
December 31, 2013	$1.331B	▲ 9.80%
November 29, 2013	$1.212B	▲ 17.46%
October 31, 2013	$1.032B	▲ 9.99%
September 30, 2013	$0.938B	▲ 11.88%
August 30, 2013	$0.838B	▲ 3.58%
July 31, 2013	$0.809B	▲ 6.69%
June 28, 2013	$0.759B	▲ 1.27%
May 31, 2013	$0.749B	▲ 4.71%
April 30, 2013	$0.715B	▲ 1.02%
March 28, 2013	$0.708B	▲ 1.36%
February 28, 2013	$0.699B	▲ 2.87%
January 31, 2013	$0.679B	▲ 4.53%
2012	$0.65B	▼ 4.56%
December 31, 2012	$0.65B	▼ 10.51%
November 30, 2012	$0.726B	▲ 7.30%
October 31, 2012	$0.677B	▲ 1.64%
September 28, 2012	$0.666B	▲ 1.45%
August 31, 2012	$0.656B	▼ 0.21%
July 31, 2012	$0.658B	▼ 1.97%
June 29, 2012	$0.671B	▲ 3.23%
May 31, 2012	$0.65B	▼ 6.00%
April 30, 2012	$0.691B	▼ 10.76%
March 30, 2012	$0.775B	▲ 7.19%
February 29, 2012	$0.723B	▲ 4.89%
January 31, 2012	$0.689B	▲ 1.22%
2011	$0.681B	▼ 9.54%
December 30, 2011	$0.681B	▲ 0.47%
November 30, 2011	$0.678B	▼ 3.32%
October 31, 2011	$0.701B	▲ 10.41%
September 30, 2011	$0.635B	▼ 7.19%
August 31, 2011	$0.684B	▲ 3.65%
July 29, 2011	$0.66B	▼ 3.26%
June 30, 2011	$0.682B	▼ 5.88%
May 31, 2011	$0.725B	▼ 2.17%
April 29, 2011	$0.741B	▲ 10.38%
March 31, 2011	$0.671B	▲ 2.85%
February 28, 2011	$0.652B	▼ 4.45%
January 31, 2011	$0.683B	▼ 9.26%
2010	$0.753B	▼ 89.35%
December 31, 2010	$0.753B	▼ 2.65%
November 30, 2010	$0.773B	▼ 2.19%
October 29, 2010	$0.79B	▲ 8.77%
September 30, 2010	$0.727B	▼ 88.74%
August 31, 2010	$6.456B	▼ 2.18%
July 30, 2010	$6.599B	▼ 0.30%
June 30, 2010	$6.619B	▼ 1.01%
May 28, 2010	$6.687B	▼ 2.22%
April 30, 2010	$6.839B	▲ 6.19%
March 31, 2010	$6.44B	▼ 6.27%
February 26, 2010	$6.87B	▲ 8.36%
January 29, 2010	$6.34B	▼ 10.27%
2009	$7.066B	▼ 0.83%
December 31, 2009	$7.066B	▲ 4.67%
November 30, 2009	$6.751B	▲ 5.75%
October 30, 2009	$6.384B	▼ 19.43%
September 30, 2009	$7.923B	▲ 4.69%
August 31, 2009	$7.568B	▲ 1.14%
July 31, 2009	$7.483B	▲ 20.99%
June 30, 2009	$6.185B	▲ 4.44%
May 29, 2009	$5.922B	▲ 0.81%
April 30, 2009	$5.874B	▼ 8.56%
March 31, 2009	$6.424B	▲ 14.80%
February 27, 2009	$5.595B	▼ 7.99%
January 30, 2009	$6.081B	▼ 14.65%
2008	$7.125B	▼ 44.92%
December 31, 2008	$7.125B	▼ 2.47%
November 28, 2008	$7.305B	▼ 14.65%
October 31, 2008	$8.559B	▼ 3.61%
September 30, 2008	$8.879B	▼ 18.79%
August 29, 2008	$10.934B	▼ 2.71%
July 31, 2008	$11.238B	▼ 12.67%
June 30, 2008	$12.868B	▼ 1.35%
May 30, 2008	$13.044B	▲ 3.17%
April 30, 2008	$12.644B	▲ 22.98%
March 31, 2008	$10.281B	▼ 17.33%
February 29, 2008	$12.436B	▼ 10.74%
January 31, 2008	$13.933B	▲ 7.70%
2007	$12.936B	N/A
December 31, 2007	$12.936B	▲ 9.93%
November 30, 2007	$11.767B	▲ 1.84%
October 31, 2007	$11.555B	▲ 9.94%
September 28, 2007	$10.511B	▼ 1.87%
August 31, 2007	$10.711B	▲ 10.21%
July 31, 2007	$9.718B	▼ 10.50%
June 29, 2007	$10.859B	▲ 6.39%
May 31, 2007	$10.206B	N/A

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

📊 Interactive Brokers Group 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.