Sirius XM SIRI Market capitalization
Market capitalization at other companies
Other financials
Where this comes from
Computed from the period-end share price: $7.73B.
The official record: Sirius XM’s 10-Q, filed April 30, 2026, on SEC EDGAR. View the filing →
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Questions, answered.
- What is Sirius XM's market capitalization?
- Sirius XM (SIRI) reported market capitalization of $7.73B in Q1 2026.
- How has Sirius XM's market capitalization changed year-over-year?
- Sirius XM's market capitalization increased by 1.2% year-over-year, from $7.64B to $7.73B.
- What is the long-term trend for Sirius XM's market capitalization?
- Over 5 years (2020 to 2025), Sirius XM's market capitalization has grown at a -23.4% compound annual growth rate (CAGR), from $25.48B to $6.73B.
- What does market capitalization mean?
- What the stock market says the company's equity is worth.
- How do you interpret market capitalization?
- A size and market-sentiment gauge, not a quality measure — interpret through valuation ratios (P/E, P/S) that relate it to fundamentals.
- How does market capitalization compare across companies?
- Comparable across companies as a size class; the input to every equity-price valuation multiple.