With a market capitalization (market cap) of $4.59B — a measure of how much the company is worth — Solaris Energy Infrastructure, Inc. ranks #1,426 among the 2,510 companies tracked, and 89th in Energy as of October 2, 2026. Shares trade at $74.93, up 4.97% on the day.
of 2,510 tracked
Market-cap change uses historical capitalization records. Share-price returns are a different series — they can diverge when the share count changes. Those returns are not a CAGR until you pick a start value, an ending value, and years. CAGR calculator. Market cap vs. stock price.
Year-end values and the chart both come from historical market-cap records, not from applying today's share count to past prices. Latest historical observation October 2, 2026. Ranking headline cap is the snapshot figure as of October 2, 2026.
| Year | As of | Market cap | Annual change | Year-end close |
|---|---|---|---|---|
| 2026 | Oct 2, 2026 | $4.44B | +84.98% | $74.93 |
| 2025 | Dec 31, 2025 | $2.4B | +180.14% | $45.97 |
| 2024 | Dec 31, 2024 | $856.12M | +270.56% | $28.78 |
| 2023 | Dec 29, 2023 | $231.03M | -26.47% | $7.96 |
Ranking figure $4.59B as of October 2, 2026.
Solaris Energy Infrastructure, Inc.'s ranking market cap is the provider-reported capitalization on the same snapshot as the rest of this site, with a share price of $74.93 as of October 2, 2026. Charts and the year-end table use a separate historical market-cap series, last observed at $4.44B on October 2, 2026. See how the ranking works.
Live shares outstanding are not on the quote used for price, so this page does not invent a current share count. Shares outstanding vs. float.
The latest annual report (FY 2025) used a weighted-average 41,859,000 shares. That figure is an average for the year, not the live count in the market-cap formula.
Multiplying the latest price by those FY 2025 weighted-average shares would give about $3.14B. The ranking uses the provider's reported market cap instead, which reflects a current share count rather than that annual average.
Book equity: assets minus liabilities on the latest annual report.
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FY 2025 net worth
Largest U.S.-listed names in the same FMP sector — not a hand-picked competitor set.
| Rank | Company | Market cap | 1D |
|---|---|---|---|
| #19 | Exxon Mobil Corporation XOM | $679.73B | +0.12% |
| #29 | Chevron Corporation CVX | $411.8B | -0.16% |
| #51 | Shell plc |
Headquartered in Houston, Texas, and established in 2014, Solaris Energy Infrastructure, Inc. (which adopted its current name in September 2024, previously known as Solaris Oilfield Infrastructure, Inc.) serves the United States' oil and natural gas industry. The company engineers and produces specialized equipment for exploration and production firms, as well as oilfield service providers. Beyond manufacturing, Solaris delivers critical support services, including technician assistance, final-mile logistics, and mobilization solutions.
Summary from the company profile (Financial Modeling Prep). Principal financial figures above are for FY 2025.
Visit websiteAs of October 2, 2026, Solaris Energy Infrastructure, Inc. (SEI) is worth $4.59B — that is its market capitalization, the total value of its outstanding shares on MarketCapLens.
A company’s net worth is its shareholders’ equity: assets minus liabilities on the balance sheet. That is book equity, not market cap. For FY 2025, Solaris Energy Infrastructure, Inc.’s book equity is about $827.25M. Market cap is the market value of the outstanding shares. As of October 2, 2026, its market cap is $4.59B. Book equity is an accounting remainder; market cap is a trading value. Neither is a person’s net worth.
Solaris Energy Infrastructure, Inc. ranks #1,426 among the 2,510 companies tracked on MarketCapLens. In Energy it ranks #89 of 158.
Fundamentals are annual. Figures labeled with their fiscal year. Live ratios use the current price against those annual earnings.
Over the past year, market cap and share price moved by different amounts. Share count can change independently of price. What changes market cap.
| 2022 |
|---|
| Dec 30, 2022 |
| $314.19M |
| +54.09% |
| $9.93 |
| 2021 | Dec 31, 2021 | $203.89M | — | $6.55 |
|---|
Last observation of each calendar year from historical market-cap records. The current year is through the latest date, not a completed year-end. Share-price close is the matching session for context — we do not rebuild cap from today's share count.
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FY 2025
| $268.3B |
| +0.65% |
| #81 | TotalEnergies SE TTE | $187.96B | -0.13% |
| #100 | ConocoPhillips COP | $154.42B | -0.24% |
| #111 | Petróleo Brasileiro S.A. - Petrobras PBR | $139.52B | +3.19% |
Companies immediately above and below in the overall ranking. They may be in a different sector.
| Rank | Company | Market cap | 1D |
|---|---|---|---|
| #1423 | First Financial Bankshares, Inc. FFIN | $4.61B | +1.26% |
| #1424 | Uranium Energy Corp. UEC | $4.6B | -0.64% |
| #1425 | Fortune Brands Innovations, Inc. FBIN | $4.6B | +0.10% |
| #1427 | LifeStance Health Group, Inc. LFST | $4.59B | -0.67% |
| #1428 | Spire Inc. SR | $4.58B | +1.44% |
| #1429 | Remitly Global, Inc. RELY | $4.58B | +1.35% |
Solaris Energy Infrastructure, Inc.’s ranking market cap of $4.59B comes from the same snapshot as the rest of this site, as of October 2, 2026. It is not share price multiplied by the FY 2025 weighted-average share count of 41,859,000. The historical market-cap series last observed $4.44B on October 2, 2026.
Over the past year, Solaris Energy Infrastructure, Inc.’s market cap is up 135.98%, using historical market-cap records rather than today’s share count applied to past prices.
Solaris Energy Infrastructure, Inc. (SEI) shares trade at $74.93, up 4.97% on the day, as of October 2, 2026.
Solaris Energy Infrastructure, Inc. trades at a live price-to-earnings (P/E) ratio of 108.6, using the latest share price divided by the latest annual earnings per share. That is not the same as a fiscal-year reported P/E.