Amentum Stock Price History
NYSE: AMTMConsumer DiscretionaryBusiness ServicesUSD
19.29+0.32 (+1.69%)
At close: Oct 9, 4:00 PM ET · Delayed 15 min
AMTM price history at a glance
The price history for Amentum (AMTM) on this page begins on September 23, 2024, when the stock closed at $25.67; it most recently closed at $19.29 on October 5, 2026. The highest price in this record is $38.11, reached on February 2, 2026; the latest close is 49.4% below that peak. Over roughly 2 years the share price changed -24.9%, a -13.1% compound annual price return (excluding dividends).
In the last 12 months alone, AMTM has lost 19.3%. Prices are split-adjusted closing prices; daily open, high, low, close and volume for the past year are listed below.
Summary generated from market data by MetaCap's automated system. Methodology
Key price levels
- High since 2024
- $38.11
- Date of high
- Feb 2, 2026
- Low since 2024
- $16.01
- Date of low
- Apr 7, 2025
- 52-week high
- $38.11
- 52-week low
- $17.72
- IPO year
- 2024
- Last close
- $19.29
AMTM returns
1 week
+6.34%
1 month
-0.10%
3 months
-8.19%
6 months
-26.63%
Year to date
-33.48%
1 year
-19.29%
AMTM price return, excluding dividends.
AMTM annual returns
| Year | Year-end close | Return |
|---|---|---|
| 2026 | 19.29 | -36.71% |
| 2025 | 30.48 | +35.05% |
| 2024* | 22.57 | -12.08% |
* Partial year: the record begins after the start of 2024; return measured from the first available close.
2026 return is year to date.
AMTM daily prices (past year)
| Date | Open | High | Low | Close | Change |
|---|---|---|---|---|---|
| 19.06 | 19.40 | 18.96 | 19.29 | +1.69% | |
| 18.37 | 18.97 | 18.10 | 18.97 | +2.49% | |
| 18.59 | 18.69 | 18.09 | 18.51 | -1.39% | |
| 18.41 | 18.93 | 18.31 | 18.77 | +2.91% | |
| 18.12 | 18.63 | 18.02 | 18.24 | +0.55% | |
| 18.59 | 18.59 | 17.72 | 18.14 | -1.84% | |
| 18.22 | 18.76 | 18.08 | 18.48 | +1.99% | |
| 18.24 | 18.41 | 18.06 | 18.12 | -0.17% | |
| 18.48 | 18.58 | 17.89 | 18.15 | -1.84% | |
| 19.00 | 19.04 | 18.48 | 18.49 | -3.65% | |
| 19.35 | 19.37 | 19.01 | 19.19 | -1.08% | |
| 19.64 | 19.81 | 19.39 | 19.40 | -1.57% | |
| 19.92 | 20.06 | 19.64 | 19.71 | +0.05% | |
| 20.00 | 20.11 | 19.41 | 19.70 | -1.01% | |
| 19.68 | 20.01 | 19.64 | 19.90 | +1.53% | |
| 20.27 | 20.33 | 19.50 | 19.60 | -2.92% | |
| 20.11 | 20.32 | 20.00 | 20.19 | +1.56% | |
| 20.09 | 20.40 | 19.65 | 19.88 | -1.29% | |
| 19.61 | 20.29 | 19.47 | 20.14 | +2.03% | |
| 19.70 | 19.81 | 19.47 | 19.74 | +1.44% | |
| 19.62 | 19.68 | 19.23 | 19.46 | -0.51% | |
| 19.36 | 19.78 | 19.21 | 19.56 | +1.29% | |
| 20.24 | 20.36 | 19.28 | 19.31 | -4.12% | |
| 20.10 | 20.25 | 19.68 | 20.14 | +0.40% | |
| 20.00 | 20.24 | 19.88 | 20.06 | -0.25% | |
| 20.00 | 20.35 | 19.90 | 20.11 | +1.06% | |
| 19.89 | 20.19 | 19.80 | 19.90 | -0.45% | |
| 20.13 | 20.25 | 19.80 | 19.99 | 0.00% | |
| 20.24 | 20.49 | 19.90 | 19.99 | -1.58% | |
| 20.45 | 20.57 | 20.17 | 20.31 | -0.59% | |
| 20.63 | 20.68 | 20.40 | 20.43 | -0.87% | |
| 20.14 | 20.85 | 20.14 | 20.61 | +1.73% | |
| 20.20 | 20.34 | 19.97 | 20.26 | +1.00% | |
| 21.47 | 21.65 | 19.99 | 20.06 | -6.65% | |
| 20.78 | 21.55 | 20.64 | 21.49 | +4.27% | |
| 21.10 | 21.18 | 20.38 | 20.61 | -2.00% | |
| 21.00 | 21.68 | 20.80 | 21.03 | +0.38% | |
| 20.55 | 20.97 | 20.09 | 20.95 | +2.55% | |
| 21.17 | 21.27 | 20.19 | 20.43 | -4.84% | |
| 21.69 | 21.98 | 21.25 | 21.47 | -0.92% | |
| 22.66 | 22.98 | 21.44 | 21.67 | -3.77% | |
| 22.15 | 22.62 | 21.90 | 22.52 | +0.40% | |
| 23.20 | 23.55 | 21.86 | 22.43 | -8.22% | |
| 24.77 | 25.08 | 24.39 | 24.44 | -1.33% | |
| 23.85 | 24.82 | 23.53 | 24.77 | +3.90% | |
| 23.35 | 24.38 | 23.30 | 23.84 | +1.88% | |
| 24.26 | 24.28 | 23.32 | 23.40 | -3.07% | |
| 23.12 | 24.16 | 23.12 | 24.14 | +4.14% | |
| 22.24 | 23.23 | 22.20 | 23.18 | +4.41% | |
| 21.73 | 22.35 | 21.49 | 22.20 | +2.16% | |
| 21.50 | 21.81 | 21.26 | 21.73 | -0.32% | |
| 23.28 | 23.33 | 21.72 | 21.80 | -7.08% | |
| 22.80 | 23.47 | 22.75 | 23.46 | +2.58% | |
| 22.58 | 23.04 | 22.49 | 22.87 | +1.42% | |
| 22.25 | 23.18 | 22.25 | 22.55 | +2.45% | |
| 21.26 | 22.30 | 21.25 | 22.01 | +2.75% | |
| 21.17 | 21.69 | 21.02 | 21.42 | +2.10% | |
| 21.14 | 21.22 | 20.82 | 20.98 | -0.85% | |
| 20.85 | 21.65 | 20.68 | 21.16 | +2.32% | |
| 20.80 | 21.28 | 20.50 | 20.68 | -0.43% | |
| 20.89 | 21.03 | 20.51 | 20.77 | +0.05% | |
| 20.55 | 21.34 | 20.55 | 20.76 | +1.32% | |
| 20.25 | 21.00 | 20.15 | 20.49 | +0.29% | |
| 21.21 | 21.28 | 20.21 | 20.43 | -2.76% | |
| 21.50 | 21.85 | 20.76 | 21.01 | -1.36% | |
| 20.61 | 21.34 | 20.45 | 21.30 | +2.01% | |
| 20.95 | 21.02 | 20.59 | 20.88 | -1.42% | |
| 22.40 | 22.72 | 21.15 | 21.18 | -4.81% | |
| 21.26 | 22.27 | 21.14 | 22.25 | +4.76% | |
| 20.51 | 21.26 | 20.46 | 21.24 | +5.15% | |
| 20.87 | 21.27 | 20.19 | 20.20 | -2.27% | |
| 20.50 | 21.23 | 20.17 | 20.67 | +2.17% | |
| 20.30 | 20.57 | 19.99 | 20.23 | -0.10% | |
| 19.91 | 20.30 | 19.80 | 20.25 | +0.80% | |
| 20.31 | 20.57 | 19.95 | 20.09 | -1.42% | |
| 20.88 | 21.07 | 20.34 | 20.38 | -2.77% | |
| 21.00 | 21.27 | 20.77 | 20.96 | -0.47% | |
| 21.36 | 21.40 | 20.77 | 21.06 | -2.77% | |
| 21.40 | 21.67 | 20.99 | 21.66 | +0.74% | |
| 22.18 | 22.60 | 21.38 | 21.50 | -2.98% | |
| 22.40 | 22.57 | 21.94 | 22.16 | -1.16% | |
| 23.26 | 23.45 | 22.20 | 22.42 | -1.92% | |
| 22.31 | 22.98 | 21.89 | 22.86 | +3.53% | |
| 21.90 | 22.22 | 21.74 | 22.08 | +0.36% | |
| 22.46 | 22.55 | 21.87 | 22.00 | -2.27% | |
| 22.70 | 23.00 | 21.87 | 22.51 | -0.44% | |
| 22.68 | 23.15 | 22.41 | 22.61 | -0.83% | |
| 23.25 | 23.31 | 22.54 | 22.80 | -2.10% | |
| 23.61 | 24.10 | 23.12 | 23.29 | +0.60% | |
| 23.00 | 23.28 | 22.67 | 23.15 | -0.90% | |
| 23.61 | 23.83 | 22.96 | 23.36 | -2.95% | |
| 23.61 | 24.53 | 23.51 | 24.07 | +3.62% | |
| 23.81 | 23.83 | 22.94 | 23.23 | -2.56% | |
| 23.10 | 24.22 | 22.88 | 23.84 | +3.16% | |
| 22.95 | 23.20 | 22.67 | 23.11 | +0.87% | |
| 23.23 | 23.46 | 22.75 | 22.91 | -1.38% | |
| 23.30 | 23.72 | 22.97 | 23.23 | +0.30% | |
| 22.22 | 23.22 | 22.05 | 23.16 | +2.93% | |
| 22.66 | 22.71 | 22.11 | 22.50 | -0.57% | |
| 23.35 | 23.50 | 22.63 | 22.63 | -2.83% | |
| 22.94 | 23.48 | 22.64 | 23.29 | +1.35% | |
| 23.31 | 23.31 | 22.61 | 22.98 | -1.16% | |
| 23.27 | 23.54 | 22.95 | 23.25 | +0.43% | |
| 24.55 | 24.60 | 22.60 | 23.15 | -4.77% | |
| 25.52 | 25.53 | 23.83 | 24.31 | +1.55% | |
| 24.53 | 25.24 | 23.85 | 23.94 | -2.41% | |
| 24.60 | 24.80 | 23.93 | 24.53 | -0.12% | |
| 25.06 | 25.33 | 24.39 | 24.56 | -1.33% | |
| 24.50 | 25.01 | 23.75 | 24.89 | +2.34% | |
| 25.91 | 25.99 | 24.01 | 24.32 | -5.59% | |
| 25.62 | 26.38 | 25.52 | 25.76 | +0.43% | |
| 26.43 | 26.67 | 25.48 | 25.65 | -2.21% | |
| 25.44 | 26.29 | 25.40 | 26.23 | +3.51% | |
| 25.92 | 26.04 | 25.13 | 25.34 | -2.16% | |
| 26.41 | 26.70 | 25.61 | 25.90 | -0.92% | |
| 25.90 | 26.67 | 25.88 | 26.14 | +1.12% | |
| 27.00 | 27.00 | 25.69 | 25.85 | -3.80% | |
| 27.66 | 27.91 | 26.60 | 26.87 | -3.31% | |
| 28.07 | 28.54 | 27.64 | 27.79 | +0.51% | |
| 27.61 | 28.14 | 27.32 | 27.65 | +0.07% | |
| 27.48 | 27.93 | 27.02 | 27.63 | +0.18% | |
| 27.83 | 28.15 | 26.93 | 27.58 | +0.29% | |
| 27.75 | 28.22 | 27.25 | 27.50 | -0.29% | |
| 27.59 | 28.10 | 27.35 | 27.58 | +0.36% | |
| 27.65 | 27.98 | 27.26 | 27.48 | -0.33% | |
| 26.38 | 27.71 | 26.22 | 27.57 | +4.87% | |
| 26.63 | 26.80 | 25.89 | 26.29 | -0.90% | |
| 27.13 | 27.36 | 26.52 | 26.53 | -2.28% | |
| 27.30 | 27.64 | 27.07 | 27.15 | +1.80% | |
| 26.95 | 27.31 | 26.56 | 26.67 | -1.44% | |
| 27.17 | 27.45 | 26.85 | 27.06 | +0.07% | |
| 26.09 | 27.42 | 26.00 | 27.04 | +2.66% | |
| 26.56 | 26.74 | 26.16 | 26.34 | +1.00% | |
| 25.87 | 26.49 | 25.38 | 26.08 | +3.62% | |
| 26.04 | 26.13 | 24.89 | 25.17 | -2.59% | |
| 26.40 | 26.40 | 25.59 | 25.84 | -2.64% | |
| 26.45 | 26.92 | 26.24 | 26.54 | -0.75% | |
| 26.96 | 27.10 | 26.31 | 26.74 | +0.56% | |
| 26.48 | 26.84 | 26.14 | 26.59 | -0.56% | |
| 27.00 | 27.46 | 26.68 | 26.74 | -0.22% | |
| 27.06 | 27.19 | 26.63 | 26.80 | -1.47% | |
| 26.91 | 27.45 | 26.56 | 27.20 | +0.48% | |
| 27.50 | 27.90 | 27.05 | 27.07 | -2.10% | |
| 27.66 | 28.31 | 27.60 | 27.65 | +0.80% | |
| 28.08 | 28.49 | 27.39 | 27.43 | -1.68% | |
| 28.11 | 28.50 | 27.33 | 27.90 | -0.36% | |
| 27.87 | 28.33 | 27.64 | 28.00 | +0.04% | |
| 28.80 | 28.80 | 27.90 | 27.99 | -2.78% | |
| 30.55 | 30.55 | 28.48 | 28.79 | -4.98% | |
| 29.69 | 30.85 | 29.02 | 30.30 | +0.97% | |
| 30.07 | 30.09 | 29.16 | 30.01 | -1.83% | |
| 30.63 | 31.20 | 29.64 | 30.57 | -1.99% | |
| 30.31 | 31.37 | 30.19 | 31.19 | +1.73% | |
| 29.81 | 30.72 | 29.36 | 30.66 | -0.13% | |
| 29.73 | 31.10 | 29.71 | 30.70 | +2.78% | |
| 29.92 | 30.36 | 29.51 | 29.87 | -1.19% | |
| 29.59 | 30.32 | 29.30 | 30.23 | +2.37% | |
| 30.48 | 30.68 | 29.31 | 29.53 | -2.19% | |
| 29.50 | 30.27 | 29.16 | 30.19 | +2.17% | |
| 30.84 | 30.84 | 29.48 | 29.55 | -4.59% | |
| 31.98 | 32.24 | 30.88 | 30.97 | -3.28% | |
| 30.50 | 32.03 | 30.25 | 32.02 | +3.73% | |
| 30.20 | 31.06 | 30.05 | 30.87 | +2.73% | |
| 30.72 | 30.95 | 30.00 | 30.05 | -3.06% | |
| 30.20 | 31.41 | 29.68 | 31.00 | +3.09% | |
| 30.32 | 31.00 | 29.35 | 30.07 | -1.05% | |
| 32.12 | 32.24 | 30.20 | 30.39 | -5.21% | |
| 33.64 | 33.75 | 31.15 | 32.06 | -12.38% | |
| 37.60 | 37.90 | 36.52 | 36.59 | -2.50% | |
| 36.33 | 38.11 | 36.22 | 37.53 | +3.10% | |
| 35.75 | 37.28 | 35.60 | 36.40 | -0.14% | |
| 36.59 | 37.00 | 35.42 | 36.45 | +0.66% | |
| 36.91 | 36.97 | 35.19 | 36.21 | +0.89% | |
| 35.83 | 36.53 | 35.04 | 35.89 | +0.31% | |
| 36.75 | 37.42 | 35.17 | 35.78 | -3.61% | |
| 37.51 | 37.94 | 35.84 | 37.12 | +3.95% | |
| 35.34 | 35.98 | 34.93 | 35.71 | +0.96% | |
| 34.94 | 35.66 | 34.70 | 35.37 | +1.38% | |
| 35.51 | 35.73 | 34.38 | 34.89 | -1.38% | |
| 35.83 | 36.00 | 35.07 | 35.38 | -0.51% | |
| 35.00 | 35.87 | 34.79 | 35.56 | +2.57% | |
| 34.55 | 35.17 | 34.00 | 34.67 | +0.81% | |
| 34.48 | 35.00 | 34.19 | 34.39 | -1.18% | |
| 34.57 | 35.00 | 34.41 | 34.80 | +0.64% | |
| 34.85 | 34.94 | 34.37 | 34.58 | -0.06% | |
| 34.50 | 34.93 | 34.07 | 34.60 | +0.87% | |
| 34.40 | 34.50 | 33.99 | 34.30 | -0.29% | |
| 33.90 | 34.64 | 33.52 | 34.40 | +2.29% | |
| 32.59 | 33.78 | 32.59 | 33.63 | +3.57% | |
| 31.55 | 32.85 | 31.35 | 32.47 | +4.10% | |
| 31.70 | 31.94 | 30.96 | 31.19 | -1.08% | |
| 31.41 | 31.68 | 31.05 | 31.53 | +0.29% | |
| 30.80 | 31.73 | 30.80 | 31.44 | +3.15% | |
| 29.10 | 30.70 | 28.93 | 30.48 | +5.10% | |
| 29.24 | 29.24 | 28.78 | 29.00 | -1.02% | |
| 29.46 | 29.65 | 28.89 | 29.30 | +0.34% | |
| 29.58 | 29.83 | 29.16 | 29.20 | -1.78% | |
| 30.04 | 30.08 | 29.53 | 29.73 | -0.60% | |
| 29.63 | 30.00 | 29.37 | 29.91 | +1.53% | |
| 29.62 | 29.72 | 29.15 | 29.46 | -1.37% | |
| 29.34 | 30.21 | 29.26 | 29.87 | +2.26% | |
| 28.64 | 29.53 | 28.40 | 29.21 | +1.81% | |
| 28.90 | 29.18 | 28.63 | 28.69 | +0.07% | |
| 28.94 | 29.44 | 28.53 | 28.67 | -1.58% | |
| 28.79 | 29.17 | 28.14 | 29.13 | -0.75% | |
| 29.63 | 29.92 | 28.80 | 29.35 | -1.24% | |
| 29.71 | 29.99 | 29.20 | 29.72 | -1.36% | |
| 29.67 | 30.18 | 28.90 | 30.13 | +1.79% | |
| 28.70 | 29.61 | 28.50 | 29.60 | +2.64% | |
| 28.43 | 29.32 | 28.01 | 28.84 | +0.07% | |
| 28.75 | 29.00 | 28.33 | 28.82 | -0.21% | |
| 28.87 | 28.91 | 28.19 | 28.88 | -1.26% | |
| 28.87 | 29.68 | 28.45 | 29.25 | +2.42% | |
| 28.79 | 28.96 | 28.27 | 28.56 | -0.56% | |
| 28.84 | 28.89 | 28.30 | 28.72 | +1.81% | |
| 28.55 | 29.05 | 28.17 | 28.21 | -1.47% | |
| 29.26 | 29.40 | 28.62 | 28.63 | -2.39% | |
| 30.57 | 30.97 | 29.11 | 29.33 | -2.23% | |
| 28.35 | 31.87 | 27.56 | 30.00 | +18.25% | |
| 24.65 | 25.45 | 24.04 | 25.37 | +4.58% | |
| 24.38 | 25.03 | 23.13 | 24.26 | -0.49% | |
| 25.55 | 26.20 | 24.02 | 24.38 | -4.47% | |
| 21.75 | 25.89 | 21.52 | 25.52 | +17.12% | |
| 21.20 | 22.14 | 21.11 | 21.79 | +1.40% | |
| 21.87 | 22.03 | 21.33 | 21.49 | -2.63% | |
| 21.61 | 22.28 | 21.55 | 22.07 | -0.41% | |
| 22.89 | 23.19 | 22.07 | 22.16 | -3.48% | |
| 23.47 | 24.08 | 22.94 | 22.96 | 0.00% | |
| 22.81 | 23.09 | 22.62 | 22.96 | +0.66% | |
| 23.15 | 23.31 | 22.15 | 22.81 | +1.78% | |
| 21.59 | 22.47 | 21.47 | 22.41 | +2.85% | |
| 22.20 | 22.42 | 21.78 | 21.79 | -2.02% | |
| 21.81 | 22.54 | 21.78 | 22.24 | +1.32% | |
| 21.80 | 22.31 | 21.67 | 21.95 | -1.13% | |
| 22.23 | 22.35 | 21.50 | 22.20 | -0.94% | |
| 22.22 | 22.42 | 21.88 | 22.41 | +2.33% | |
| 21.31 | 22.18 | 21.28 | 21.90 | +1.96% | |
| 21.78 | 22.08 | 21.40 | 21.48 | -1.83% | |
| 22.41 | 22.50 | 21.77 | 21.88 | -2.58% | |
| 22.58 | 22.97 | 22.26 | 22.46 | -0.40% | |
| 23.24 | 23.40 | 22.43 | 22.55 | -2.63% | |
| 22.52 | 23.24 | 22.44 | 23.16 | +3.67% | |
| 22.68 | 23.03 | 22.28 | 22.34 | -2.23% | |
| 22.80 | 23.34 | 22.77 | 22.85 | -0.13% | |
| 22.64 | 23.08 | 22.24 | 22.88 | +2.14% | |
| 22.33 | 22.60 | 22.18 | 22.40 | -1.19% | |
| 23.26 | 23.40 | 22.59 | 22.67 | -1.65% | |
| 23.56 | 24.09 | 22.79 | 23.05 | -1.71% | |
| 23.62 | 23.83 | 23.08 | 23.45 | -1.01% | |
| 23.67 | 23.98 | 23.37 | 23.69 | +1.28% | |
| 23.92 | 23.99 | 23.32 | 23.39 | -2.13% | |
| 25.17 | 25.17 | 23.87 | 23.90 | — |
Prices are adjusted for stock splits. See adjusted closing price for how dividends and splits affect history, and the AMTM chart for longer ranges.