Amentum Holdings (AMTM) Market Cap 2024–2026
As of October 22, 2026, Amentum Holdings had a market cap of $5.202 billion, which increased by 5.67% compared to the previous trading day. Market capitalization, often referred to as market cap, represents the total value of a company's outstanding shares on the stock market and is a common measure of its overall size and valuation.
Amentum Holdings Inc. (AMTM)
🌍 United States 📈 NYSE 🏭 Industrials 🏢 Professional Services
Latest Market Cap
$5.202B ▲ 5.67%
Start of 2026
$7.064B ▼ 26.36%
1 Year Ago
$5.635B ▼ 7.68%
All-Time High
$9.142B ▼ 43.10%
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Note: Each point on the chart represents the market capitalization at the end of the trading day.
Source: Data compiled from EDGAR filings, Bloomberg and Yahoo Finance.
Source: Data compiled from EDGAR filings, Bloomberg and Yahoo Finance.
📈 Amentum Holdings Market Cap History by Year and Month
| Year / Month | Market Cap | % Change |
|---|---|---|
| 2026 | $5.202B | ▼ 26.36% |
| $5.202B | ▲ 17.51% | |
| $4.427B | ▼ 9.36% | |
| $4.884B | ▼ 9.87% | |
| $5.419B | ▲ 7.41% | |
| $5.045B | ▼ 11.10% | |
| $5.675B | ▼ 11.30% | |
| $6.398B | ▲ 0.57% | |
| $6.362B | ▼ 12.68% | |
| $7.286B | ▼ 16.41% | |
| $8.716B | ▲ 23.39% | |
| 2025 | $7.064B | ▲ 38.05% |
| 2024 | $5.117B | ▲ 13.13% |
📊 Amentum Holdings Market Cap and Other Industry Peers
Below are selected companies from the Industrials sector / subsector:
Note: Market capitalization figures are based on available sources and may differ slightly from actual values, particularly for historical data.