With a market capitalization (market cap) of $26.26B — a measure of how much the company is worth — ATI Inc. ranks #491 among the 2,510 companies tracked, and 64th in Industrials as of October 3, 2026. Shares trade at $192.42, up 0.67% 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 3, 2026.
| Year | As of | Market cap | Annual change | Year-end close |
|---|---|---|---|---|
| 2026 | Oct 2, 2026 | $26.18B | +67.84% | $192.42 |
| 2025 | Dec 31, 2025 | $15.6B | +99.97% | $114.76 |
| 2024 | Dec 31, 2024 | $7.8B | +34.85% | $55.04 |
| 2023 | Dec 29, 2023 | $5.78B | +35.17% | $45.47 |
| 2022 |
Ranking figure $26.26B as of October 3, 2026.
ATI 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 $192.42 as of October 2, 2026. Charts and the year-end table use a separate historical market-cap series, last observed at $26.18B 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 138,600,000 shares. That figure is an average for the year, not the live count in the market-cap formula.
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 |
|---|---|---|---|
| #7 | Space Exploration Technologies Corp. SPCX | $2.1T | +7.35% |
| #32 | Caterpillar Inc. CAT | $389.43B | +2.31% |
| #42 | GE Aerospace |
Globally, ATI Inc. stands as a premier manufacturer and supplier of specialized materials and complex components. The enterprise's operations are strategically divided into two primary divisions: High Performance Materials & Components (HPMC) and Advanced Alloys & Solutions (AA&S). The HPMC segment is responsible for creating a diverse range of advanced substances, including titanium and its numerous alloys, nickel- and cobalt-based alloys (such as superalloys), sophisticated powdered alloys, and other distinctive specialty materials.
Summary from the company profile (Financial Modeling Prep). Principal financial figures above are for FY 2025.
Visit websiteAs of October 3, 2026, ATI Inc. (ATI) is worth $26.26B — 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, ATI Inc.’s book equity is about $1.92B. Market cap is the market value of the outstanding shares. As of October 3, 2026, its market cap is $26.26B. Book equity is an accounting remainder; market cap is a trading value. Neither is a person’s net worth.
ATI Inc. ranks #491 among the 2,510 companies tracked on MarketCapLens. In Industrials it ranks #64 of 341.
Fundamentals are annual. Figures labeled with their fiscal year. Live ratios use the current price against those annual earnings.
| Dec 30, 2022 |
| $4.28B |
| +75.79% |
| $29.86 |
| 2021 | Dec 31, 2021 | $2.43B | — | $15.93 |
|---|
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
| $321.19B |
| -0.91% |
| #54 | GE Vernova Inc. GEV | $263.32B | +0.13% |
| #59 | RTX Corporation RTX | $248.9B | -0.18% |
| #82 | Deere & Company DE | $185.45B | +2.96% |
Companies immediately above and below in the overall ranking. They may be in a different sector.
| Rank | Company | Market cap | 1D |
|---|---|---|---|
| #488 | Halliburton Company HAL | $26.61B | -0.09% |
| #489 | Cognizant Technology Solutions Corporation CTSH | $26.36B | -3.89% |
| #490 | The Kraft Heinz Company KHC | $26.31B | -1.20% |
| #492 | Dollar General Corporation DG | $26.24B | +0.01% |
| #493 | Atmos Energy Corporation ATO | $26.23B | +0.51% |
| #494 | VeriSign, Inc. VRSN | $26.06B | +0.49% |
ATI Inc.’s ranking market cap of $26.26B comes from the same snapshot as the rest of this site, as of October 3, 2026. It is not share price multiplied by the FY 2025 weighted-average share count of 138,600,000. The historical market-cap series last observed $26.18B on October 2, 2026.
Over the past year, ATI Inc.’s market cap is up 133.41%, using historical market-cap records rather than today’s share count applied to past prices.
ATI Inc. (ATI) shares trade at $192.42, up 0.67% on the day, as of October 3, 2026.
ATI Inc. trades at a live price-to-earnings (P/E) ratio of 65.9, 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.