Current
$5.45B
5-Year Average
$5.23B
All-Time High
$9.16B
All-Time Low
$1.74B
Market cap daily chart for Amentum Holdings (AMTM)
Sep 24, 2024 – Jul 6, 2026 · 445 trading days
Market Cap growth chart for Amentum Holdings (AMTM) from 2024 to 2026
Latest: -13.9%
Market Cap history table for Amentum Holdings (AMTM) from 2024 to 2026
| 2026 | $5.45B | -13.9% | −$880.55M | ||
| 2025 | $6.33B | +171.1% | +$4.00B | ||
| 2024 | $2.34B | — | — |
- 2026$5.45B-13.9%
- 2025$6.33B+171.1%
- 2024$2.34B—
Market Cap values are taken from Amentum Holdings's reported income statements (share counts) and end-of-day prices (quarterly 10-Q and annual 10-K filings with the U.S. Securities and Exchange Commission). Each row shows the period end date and the filing date. YoY compares each figure to the same period one year earlier. Amounts are in USD as filed.
About Market Cap at Amentum Holdings (AMTM)
According to Amentum Holdings's latest reported financial statements, the company's latest reported market cap is $6.62B. Market capitalization is the total dollar value of all outstanding shares — shares outstanding × stock price — and the standard measure of a company's equity value. On this page, historical market cap snaps filing-period share counts to closing prices on or before each statement date (not intraday tick data).
Headline figure above is from the reporting period ending (reported ). Chart and table below cover the full reported history back to .
Amentum Holdings (AMTM) most recent annual market cap stands at $5.45B (2026) – declined 13.9% year-over-year.
Amentum Holdings market cap declined from $6.33B in 2025 to $5.45B in 2026, a 13.9% drawdown.
Amentum Holdings Market Cap by Year
Amentum Holdings Market Cap 2026: $5.45B
Amentum Holdings market cap in 2026 was $5.45B, declined 13.9% below 2025.
Amentum Holdings Market Cap 2025: $6.33B
2025's market cap for Amentum Holdings came in at $6.33B, surged 171.1% from 2024. This figure represents the highest annual value in the available history.
Amentum Holdings Market Cap 2024: $2.34B
Amentum Holdings market cap in 2024 was $2.34B.
See more financial history for Amentum Holdings (AMTM).
Sector peers by Market Cap
Industrials peers of Amentum Holdings (AMTM), ranked by their latest market cap
| $2.10T | |
| $450.89B | |
| $392.96B | |
| $268.73B | |
| $183.52B | |
| $168.28B | |
| $166.16B | |
| $160.40B |
- $2.10T
- $450.89B
- $392.96B
- $268.73B
- $183.52B
- $168.28B
- $166.16B
- $160.40B
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Amentum Holdings (AMTM) Key Financials
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