Sirius XM Holdings Inc. (SIRI)

NASDAQ: SIRI · Real-Time Price · USD

27.05

+1.00 (3.84%)

At close: May 20, 2026, 4:00 PM EDT

27.37

+0.32 (1.18%)

After-hours: May 20, 2026, 7:14 PM EDT

Sirius XM Market Cap

Sirius XM has a market cap or net worth of $9.11 billion as of May 20, 2026. Its market cap has increased by 26.56% in one year.

Market Cap

9.11B

Enterprise Value

18.79B

1-Year Change

26.56%

Ranking

#998

Market Cap Chart

Since December 1, 1998, Sirius XM's market cap has increased from $810.10M to $9.11B, an increase of 1,024.01%. That is a compound annual growth rate of 9.20%.

Market Cap History

Date	Market Cap	% Change
May 19, 2026	8.77B	30.27%
Dec 31, 2025	6.73B	-12.96%
Dec 31, 2024	7.73B	-63.17%
Dec 29, 2023	21.00B	-7.55%
Dec 30, 2022	22.71B	-10.56%
Dec 31, 2021	25.40B	-6.18%
Dec 31, 2020	27.07B	-14.42%
Dec 31, 2019	31.63B	24.71%
Dec 31, 2018	25.36B	2.96%
Dec 29, 2017	24.63B	14.73%
Dec 30, 2016	21.47B	1.21%
Dec 31, 2015	21.21B	10.31%
Dec 31, 2014	19.23B	-10.19%
Dec 31, 2013	21.41B	42.29%
Dec 31, 2012	15.05B	120.46%
Dec 30, 2011	6.83B	6.66%
Dec 31, 2010	6.40B	176.42%
Dec 31, 2009	2.32B	449.15%
Dec 31, 2008	421.60M	-90.53%
Dec 31, 2007	4.45B	-10.58%
Dec 29, 2006	4.98B	-44.20%
Dec 30, 2005	8.92B	-7.31%
Dec 31, 2004	9.62B	205.13%
Dec 31, 2003	3.15B	6,285.43%
Dec 31, 2002	49.40M	-92.16%

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Market Capitalization

Market capitalization, also called net worth, is the total value of all of a company's outstanding shares. It is calculated by multiplying the stock price by the number of shares outstanding.

Formula: Market Cap = Stock Price * Shares Outstanding

Full Definition

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