Algoma Steel Group Stock Price History
NASDAQ: ASTLIndustrialsSteel/Iron OreUSD
4.30+0.12 (+2.87%)
At close: Oct 9, 4:00 PM ET · Delayed 15 min
ASTL price history at a glance
The price history for Algoma Steel Group (ASTL) on this page begins on March 1, 2021, when the stock closed at $9.71; it most recently closed at $4.30 on October 5, 2026. The highest price in this record is $13.65, reached on November 8, 2021; the latest close is 68.5% below that peak. Across the 4 complete calendar years in the table, ASTL finished higher in 1 and lower in 3. Its best year was 2023 (+58.2%) and its worst was 2025 (-56.2%).
Over roughly 6 years the share price changed -55.7%, a -13.5% compound annual price return (excluding dividends). In the last 12 months alone, ASTL has gained 13.5%. 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 2021
- $13.65
- Date of high
- Nov 8, 2021
- Low since 2021
- $3.02
- Date of low
- Sep 29, 2025
- 52-week high
- $5.90
- 52-week low
- $3.16
- Last close
- $4.30
ASTL returns
1 week
-0.92%
1 month
-1.15%
3 months
+18.78%
6 months
-8.70%
Year to date
+4.88%
1 year
+13.46%
3 years
-34.75%
5 years
-63.40%
ASTL price return, excluding dividends.
ASTL annual returns
| Year | Year-end close | Return |
|---|---|---|
| 2026 | 4.30 | +9.69% |
| 2025 | 3.92 | -56.15% |
| 2024 | 8.94 | -10.87% |
| 2023 | 10.03 | +58.20% |
| 2022 | 6.34 | -41.35% |
| 2021* | 10.81 | +11.33% |
* Partial year: the record begins after the start of 2021; return measured from the first available close.
2026 return is year to date.
ASTL daily prices (past year)
| Date | Open | High | Low | Close | Change |
|---|---|---|---|---|---|
| 4.20 | 4.35 | 4.14 | 4.30 | +2.87% | |
| 4.23 | 4.23 | 4.12 | 4.18 | -1.18% | |
| 4.26 | 4.32 | 4.19 | 4.23 | -2.76% | |
| 4.48 | 4.52 | 4.33 | 4.35 | -2.25% | |
| 4.35 | 4.59 | 4.29 | 4.45 | +2.53% | |
| 4.04 | 4.36 | 3.93 | 4.34 | +5.60% | |
| 4.15 | 4.17 | 4.05 | 4.11 | -1.44% | |
| 4.21 | 4.29 | 4.16 | 4.17 | -0.71% | |
| 4.37 | 4.47 | 4.13 | 4.20 | -3.45% | |
| 4.21 | 4.44 | 4.17 | 4.35 | +2.11% | |
| 4.19 | 4.30 | 4.16 | 4.26 | +1.67% | |
| 4.31 | 4.36 | 4.19 | 4.19 | -3.90% | |
| 4.39 | 4.44 | 4.29 | 4.36 | -1.58% | |
| 4.28 | 4.44 | 4.25 | 4.43 | +3.75% | |
| 4.28 | 4.33 | 4.21 | 4.27 | +0.47% | |
| 4.41 | 4.45 | 4.19 | 4.25 | -3.85% | |
| 4.30 | 4.46 | 4.28 | 4.42 | +4.25% | |
| 4.21 | 4.33 | 4.15 | 4.24 | +0.95% | |
| 4.20 | 4.27 | 4.17 | 4.20 | -0.94% | |
| 4.23 | 4.28 | 4.13 | 4.24 | -0.47% | |
| 4.33 | 4.37 | 4.17 | 4.26 | -0.93% | |
| 4.30 | 4.30 | 4.14 | 4.30 | -1.15% | |
| 4.39 | 4.45 | 4.35 | 4.35 | -1.25% | |
| 4.66 | 4.73 | 4.40 | 4.41 | -6.48% | |
| 4.42 | 4.76 | 4.42 | 4.71 | +5.84% | |
| 4.45 | 4.52 | 4.30 | 4.45 | +1.48% | |
| 4.14 | 4.43 | 4.11 | 4.39 | +6.17% | |
| 4.19 | 4.19 | 4.05 | 4.13 | -1.78% | |
| 4.14 | 4.25 | 4.13 | 4.21 | +0.60% | |
| 4.40 | 4.40 | 4.16 | 4.18 | -2.56% | |
| 4.16 | 4.32 | 4.16 | 4.29 | +3.12% | |
| 3.96 | 4.20 | 3.91 | 4.16 | +4.26% | |
| 4.01 | 4.09 | 3.92 | 3.99 | -0.50% | |
| 4.45 | 4.45 | 4.00 | 4.01 | -13.76% | |
| 4.65 | 4.88 | 4.60 | 4.65 | +1.97% | |
| 4.86 | 4.86 | 4.37 | 4.56 | -4.80% | |
| 4.18 | 5.07 | 4.18 | 4.79 | +17.11% | |
| 4.10 | 4.39 | 3.97 | 4.09 | -1.68% | |
| 4.24 | 4.27 | 4.03 | 4.16 | -2.80% | |
| 4.47 | 4.48 | 4.24 | 4.28 | -4.04% | |
| 4.45 | 4.54 | 4.42 | 4.46 | +0.22% | |
| 4.44 | 4.53 | 4.36 | 4.45 | +0.68% | |
| 4.43 | 4.57 | 4.38 | 4.42 | -0.23% | |
| 4.05 | 4.61 | 4.04 | 4.43 | +8.71% | |
| 4.03 | 4.15 | 3.95 | 4.08 | +2.64% | |
| 4.45 | 4.45 | 3.96 | 3.97 | -10.99% | |
| 4.24 | 4.46 | 4.22 | 4.46 | +5.69% | |
| 3.95 | 4.32 | 3.93 | 4.22 | +7.65% | |
| 3.87 | 4.01 | 3.84 | 3.92 | +1.82% | |
| 3.81 | 3.94 | 3.68 | 3.85 | +0.39% | |
| 4.05 | 4.39 | 3.64 | 3.84 | -10.19% | |
| 4.40 | 4.45 | 4.18 | 4.27 | -2.73% | |
| 4.34 | 4.47 | 4.30 | 4.39 | 0.00% | |
| 4.36 | 4.40 | 4.23 | 4.39 | +1.62% | |
| 4.36 | 4.51 | 4.27 | 4.32 | -0.69% | |
| 4.08 | 4.36 | 4.06 | 4.35 | +6.88% | |
| 3.85 | 4.10 | 3.82 | 4.07 | +5.71% | |
| 3.74 | 3.88 | 3.71 | 3.85 | +3.77% | |
| 3.83 | 3.85 | 3.67 | 3.71 | -3.13% | |
| 3.66 | 3.86 | 3.60 | 3.83 | +3.51% | |
| 3.77 | 3.77 | 3.62 | 3.70 | -2.63% | |
| 3.67 | 3.82 | 3.62 | 3.80 | +3.83% | |
| 3.71 | 3.76 | 3.64 | 3.66 | +1.39% | |
| 3.73 | 3.73 | 3.58 | 3.61 | -0.28% | |
| 3.58 | 3.66 | 3.51 | 3.62 | +0.84% | |
| 3.82 | 3.82 | 3.55 | 3.59 | -4.27% | |
| 3.75 | 3.79 | 3.70 | 3.75 | -0.27% | |
| 3.73 | 3.79 | 3.69 | 3.76 | -0.27% | |
| 3.77 | 3.88 | 3.74 | 3.77 | 0.00% | |
| 3.87 | 4.07 | 3.70 | 3.77 | -1.57% | |
| 4.03 | 4.09 | 3.82 | 3.83 | -5.43% | |
| 4.04 | 4.15 | 3.96 | 4.05 | +1.00% | |
| 4.21 | 4.21 | 4.00 | 4.01 | -4.07% | |
| 4.17 | 4.23 | 4.11 | 4.18 | 0.00% | |
| 4.00 | 4.24 | 4.00 | 4.18 | +4.76% | |
| 4.13 | 4.14 | 3.91 | 3.99 | -4.09% | |
| 4.27 | 4.27 | 4.13 | 4.16 | -3.03% | |
| 4.56 | 4.56 | 4.23 | 4.29 | -5.09% | |
| 4.80 | 4.82 | 4.51 | 4.52 | -4.94% | |
| 4.89 | 5.00 | 4.74 | 4.76 | -3.16% | |
| 4.91 | 4.96 | 4.79 | 4.91 | -0.41% | |
| 5.23 | 5.27 | 4.92 | 4.93 | -1.60% | |
| 4.75 | 5.01 | 4.71 | 5.01 | +6.37% | |
| 4.61 | 4.71 | 4.54 | 4.71 | +3.29% | |
| 4.65 | 4.72 | 4.56 | 4.56 | -2.56% | |
| 4.99 | 5.07 | 4.57 | 4.68 | -5.26% | |
| 5.14 | 5.14 | 4.93 | 4.94 | -0.40% | |
| 5.40 | 5.41 | 4.94 | 4.96 | -9.49% | |
| 5.53 | 5.74 | 5.44 | 5.48 | -0.90% | |
| 5.60 | 5.71 | 5.51 | 5.53 | -1.43% | |
| 5.80 | 5.87 | 5.51 | 5.61 | -3.28% | |
| 5.62 | 5.90 | 5.56 | 5.80 | +3.20% | |
| 5.55 | 5.77 | 5.43 | 5.62 | +1.08% | |
| 5.26 | 5.72 | 5.22 | 5.56 | +4.32% | |
| 4.96 | 5.34 | 4.92 | 5.33 | +7.03% | |
| 4.74 | 5.05 | 4.74 | 4.98 | +5.29% | |
| 4.74 | 4.82 | 4.66 | 4.73 | 0.00% | |
| 4.88 | 4.88 | 4.57 | 4.73 | -4.06% | |
| 5.24 | 5.29 | 4.93 | 4.93 | -4.83% | |
| 5.18 | 5.29 | 5.04 | 5.18 | -0.77% | |
| 5.20 | 5.38 | 5.01 | 5.22 | +0.19% | |
| 5.00 | 5.35 | 5.00 | 5.21 | +1.17% | |
| 5.01 | 5.21 | 4.90 | 5.15 | +3.00% | |
| 4.67 | 5.44 | 4.65 | 5.00 | +0.20% | |
| 5.11 | 5.14 | 4.87 | 4.99 | -2.92% | |
| 5.15 | 5.19 | 5.04 | 5.14 | 0.00% | |
| 5.26 | 5.29 | 5.09 | 5.14 | -1.34% | |
| 5.10 | 5.29 | 4.99 | 5.21 | +2.36% | |
| 4.98 | 5.20 | 4.95 | 5.09 | +4.73% | |
| 4.76 | 4.94 | 4.71 | 4.86 | +2.97% | |
| 4.83 | 4.90 | 4.66 | 4.72 | -2.07% | |
| 4.70 | 4.88 | 4.68 | 4.82 | +3.21% | |
| 4.45 | 4.69 | 4.45 | 4.67 | +4.71% | |
| 4.60 | 4.62 | 4.44 | 4.46 | -3.46% | |
| 4.61 | 4.65 | 4.54 | 4.62 | -1.70% | |
| 4.55 | 4.77 | 4.53 | 4.70 | +3.98% | |
| 4.43 | 4.59 | 4.40 | 4.52 | +1.80% | |
| 4.76 | 4.79 | 4.41 | 4.44 | -6.13% | |
| 4.64 | 4.76 | 4.60 | 4.73 | +3.05% | |
| 4.72 | 4.83 | 4.57 | 4.59 | -2.13% | |
| 4.66 | 4.74 | 4.61 | 4.69 | -1.05% | |
| 4.89 | 4.95 | 4.70 | 4.74 | -0.63% | |
| 4.92 | 5.00 | 4.73 | 4.77 | -2.85% | |
| 5.07 | 5.08 | 4.91 | 4.91 | -3.16% | |
| 5.06 | 5.10 | 4.97 | 5.07 | +1.20% | |
| 4.67 | 5.05 | 4.67 | 5.01 | +6.37% | |
| 4.69 | 4.78 | 4.57 | 4.71 | +0.86% | |
| 4.57 | 4.76 | 4.54 | 4.67 | +1.97% | |
| 4.54 | 4.71 | 4.50 | 4.58 | +3.85% | |
| 4.22 | 4.43 | 4.17 | 4.41 | +5.25% | |
| 4.12 | 4.25 | 4.10 | 4.19 | +1.21% | |
| 3.98 | 4.19 | 3.96 | 4.14 | +0.73% | |
| 4.26 | 4.29 | 4.10 | 4.11 | -0.48% | |
| 4.06 | 4.18 | 4.01 | 4.13 | +4.29% | |
| 4.04 | 4.09 | 3.92 | 3.96 | 0.00% | |
| 4.14 | 4.26 | 3.93 | 3.96 | -4.81% | |
| 4.06 | 4.31 | 4.05 | 4.16 | 0.00% | |
| 4.00 | 4.18 | 4.00 | 4.16 | +3.23% | |
| 3.73 | 4.10 | 3.70 | 4.03 | +6.90% | |
| 3.64 | 3.94 | 3.61 | 3.77 | +5.60% | |
| 3.60 | 3.81 | 3.50 | 3.57 | -1.92% | |
| 3.47 | 3.65 | 3.37 | 3.64 | +0.55% | |
| 3.68 | 3.73 | 3.60 | 3.62 | -3.21% | |
| 3.63 | 3.80 | 3.63 | 3.74 | +4.47% | |
| 3.46 | 3.63 | 3.40 | 3.58 | +3.47% | |
| 3.69 | 3.69 | 3.37 | 3.46 | -6.23% | |
| 4.18 | 4.36 | 3.68 | 3.69 | -14.78% | |
| 4.26 | 4.41 | 4.25 | 4.33 | +0.70% | |
| 4.27 | 4.42 | 4.22 | 4.30 | -0.92% | |
| 4.32 | 4.41 | 4.17 | 4.34 | -1.36% | |
| 4.55 | 4.60 | 4.28 | 4.40 | -5.58% | |
| 4.65 | 4.75 | 4.56 | 4.66 | -0.85% | |
| 4.66 | 4.79 | 4.56 | 4.70 | +2.17% | |
| 4.53 | 4.70 | 4.33 | 4.60 | -2.54% | |
| 4.48 | 4.72 | 4.40 | 4.72 | +2.83% | |
| 4.66 | 4.70 | 4.48 | 4.59 | -3.37% | |
| 4.52 | 4.76 | 4.45 | 4.75 | +4.63% | |
| 4.66 | 4.67 | 4.50 | 4.54 | -1.30% | |
| 4.67 | 4.81 | 4.60 | 4.60 | -1.08% | |
| 4.89 | 4.92 | 4.55 | 4.65 | -6.06% | |
| 4.84 | 5.12 | 4.81 | 4.95 | +1.23% | |
| 4.52 | 4.94 | 4.49 | 4.89 | +5.84% | |
| 4.68 | 4.70 | 4.52 | 4.62 | -0.43% | |
| 4.79 | 4.79 | 4.43 | 4.64 | -3.73% | |
| 4.67 | 4.98 | 4.39 | 4.82 | +12.09% | |
| 5.10 | 5.16 | 4.27 | 4.30 | -15.02% | |
| 5.22 | 5.34 | 5.03 | 5.06 | -1.08% | |
| 4.94 | 5.37 | 4.90 | 5.12 | +3.96% | |
| 4.60 | 4.98 | 4.48 | 4.92 | +6.72% | |
| 4.43 | 4.70 | 4.39 | 4.61 | +6.71% | |
| 4.50 | 4.55 | 4.29 | 4.32 | -6.29% | |
| 4.53 | 4.65 | 4.37 | 4.61 | +2.44% | |
| 4.35 | 4.54 | 4.31 | 4.50 | +6.38% | |
| 4.15 | 4.29 | 4.10 | 4.23 | +1.20% | |
| 4.37 | 4.45 | 4.17 | 4.18 | -6.07% | |
| 4.61 | 4.62 | 4.33 | 4.45 | -2.84% | |
| 4.75 | 4.82 | 4.46 | 4.58 | +0.44% | |
| 4.40 | 4.67 | 4.29 | 4.56 | +6.29% | |
| 4.54 | 4.61 | 4.23 | 4.29 | -5.51% | |
| 4.38 | 4.71 | 4.33 | 4.54 | +3.65% | |
| 4.21 | 4.54 | 4.21 | 4.38 | +4.78% | |
| 4.08 | 4.18 | 4.05 | 4.18 | +3.21% | |
| 4.40 | 4.40 | 4.04 | 4.05 | -7.95% | |
| 4.58 | 4.59 | 4.35 | 4.40 | -3.93% | |
| 4.71 | 4.76 | 4.52 | 4.58 | -2.35% | |
| 4.34 | 4.73 | 4.34 | 4.69 | +7.82% | |
| 4.43 | 4.54 | 4.34 | 4.35 | -0.68% | |
| 4.27 | 4.40 | 4.18 | 4.38 | +3.06% | |
| 4.24 | 4.32 | 4.15 | 4.25 | +0.24% | |
| 4.24 | 4.36 | 4.17 | 4.24 | 0.00% | |
| 4.15 | 4.32 | 4.06 | 4.24 | +2.17% | |
| 3.97 | 4.18 | 3.95 | 4.15 | +4.80% | |
| 3.93 | 4.09 | 3.93 | 3.96 | +1.02% | |
| 4.12 | 4.16 | 3.84 | 3.92 | -4.39% | |
| 4.06 | 4.14 | 4.01 | 4.10 | +0.74% | |
| 4.11 | 4.17 | 4.06 | 4.07 | -0.73% | |
| 4.11 | 4.22 | 4.07 | 4.10 | -1.20% | |
| 4.16 | 4.17 | 4.07 | 4.15 | -0.48% | |
| 4.17 | 4.19 | 4.10 | 4.17 | -0.24% | |
| 4.25 | 4.32 | 4.18 | 4.18 | -2.56% | |
| 4.48 | 4.55 | 4.23 | 4.29 | -0.69% | |
| 4.44 | 4.50 | 4.32 | 4.32 | -2.48% | |
| 4.41 | 4.56 | 4.39 | 4.43 | +1.84% | |
| 4.47 | 4.62 | 4.28 | 4.35 | -2.47% | |
| 4.39 | 4.51 | 4.35 | 4.46 | +1.36% | |
| 4.55 | 4.62 | 4.33 | 4.40 | -2.87% | |
| 4.61 | 4.75 | 4.50 | 4.53 | -1.74% | |
| 4.30 | 4.65 | 4.23 | 4.61 | +7.21% | |
| 4.30 | 4.36 | 4.21 | 4.30 | 0.00% | |
| 4.08 | 4.31 | 4.03 | 4.30 | +5.65% | |
| 4.17 | 4.20 | 4.07 | 4.07 | -1.93% | |
| 4.15 | 4.22 | 4.01 | 4.15 | 0.00% | |
| 4.05 | 4.20 | 3.95 | 4.15 | +1.97% | |
| 3.95 | 4.08 | 3.91 | 4.07 | +3.83% | |
| 3.89 | 4.00 | 3.79 | 3.92 | +0.77% | |
| 4.22 | 4.22 | 3.89 | 3.89 | -8.90% | |
| 4.19 | 4.28 | 4.05 | 4.27 | +9.49% | |
| 3.64 | 3.98 | 3.58 | 3.90 | +7.14% | |
| 3.46 | 3.68 | 3.46 | 3.64 | +5.81% | |
| 3.37 | 3.48 | 3.29 | 3.44 | +2.08% | |
| 3.29 | 3.38 | 3.16 | 3.37 | +2.74% | |
| 3.48 | 3.55 | 3.19 | 3.28 | -4.37% | |
| 3.60 | 3.67 | 3.36 | 3.43 | -3.38% | |
| 3.45 | 3.58 | 3.32 | 3.55 | +1.72% | |
| 3.58 | 3.66 | 3.48 | 3.49 | -2.51% | |
| 3.66 | 3.67 | 3.55 | 3.58 | -4.28% | |
| 3.89 | 3.90 | 3.72 | 3.74 | -4.59% | |
| 3.75 | 3.93 | 3.75 | 3.92 | +5.09% | |
| 3.77 | 3.78 | 3.68 | 3.73 | -1.84% | |
| 3.94 | 3.94 | 3.72 | 3.80 | -1.55% | |
| 3.66 | 3.97 | 3.52 | 3.86 | +5.46% | |
| 3.99 | 4.00 | 3.66 | 3.66 | -8.04% | |
| 4.18 | 4.22 | 3.91 | 3.98 | -3.63% | |
| 4.13 | 4.24 | 4.02 | 4.13 | -1.90% | |
| 4.14 | 4.27 | 3.98 | 4.21 | +0.96% | |
| 4.00 | 4.23 | 3.95 | 4.17 | +4.51% | |
| 4.04 | 4.30 | 3.57 | 3.99 | -6.12% | |
| 4.26 | 4.36 | 4.19 | 4.25 | -0.23% | |
| 4.28 | 4.38 | 4.22 | 4.26 | -1.16% | |
| 4.53 | 4.56 | 4.29 | 4.31 | -4.22% | |
| 4.10 | 4.59 | 4.10 | 4.50 | -2.81% | |
| 4.55 | 4.71 | 4.50 | 4.63 | +3.35% | |
| 4.41 | 4.58 | 4.34 | 4.48 | +0.45% | |
| 4.10 | 4.51 | 3.97 | 4.46 | +11.78% | |
| 3.87 | 4.00 | 3.74 | 3.99 | +5.28% | |
| 3.89 | 3.92 | 3.71 | 3.79 | -2.70% | |
| 4.42 | 4.44 | 3.89 | 3.90 | -11.68% | |
| 4.05 | 4.46 | 4.01 | 4.41 | +9.43% | |
| 3.71 | 4.06 | 3.58 | 4.03 | +6.61% | |
| 3.60 | 3.88 | 3.60 | 3.78 | +7.08% | |
| 3.81 | 3.90 | 3.52 | 3.53 | -6.86% | |
| 3.72 | 3.88 | 3.71 | 3.79 | — |
Prices are adjusted for stock splits. See adjusted closing price for how dividends and splits affect history, and the ASTL chart for longer ranges.