Allegro MicroSystems, Inc. (ALGM)
NASDAQ: ALGM · Real-Time Price · USD
28.28
+0.78 (2.84%)
At close: Oct 8, 2025, 4:00 PM EDT
28.28
0.00 (0.00%)
After-hours: Oct 8, 2025, 5:01 PM EDT
Allegro MicroSystems Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Oct 8, 2025 | 27.52 | 28.30 | 27.38 | 28.28 | - | 2.84% | 3,185,797 |
| Oct 7, 2025 | 28.51 | 28.58 | 26.97 | 27.50 | 27.50 | -2.55% | 1,756,704 |
| Oct 6, 2025 | 28.88 | 28.99 | 27.80 | 28.22 | 28.22 | -0.35% | 1,905,711 |
| Oct 3, 2025 | 28.64 | 28.83 | 28.12 | 28.32 | 28.32 | -0.32% | 1,546,221 |
| Oct 2, 2025 | 28.91 | 28.98 | 28.25 | 28.41 | 28.41 | -0.04% | 1,486,966 |
| Oct 1, 2025 | 28.97 | 29.18 | 28.04 | 28.42 | 28.42 | -2.67% | 1,742,970 |
| Sep 30, 2025 | 29.26 | 29.63 | 28.85 | 29.20 | 29.20 | 0.14% | 1,274,186 |
| Sep 29, 2025 | 30.18 | 30.31 | 29.14 | 29.16 | 29.16 | -1.85% | 1,497,645 |
| Sep 26, 2025 | 30.02 | 30.43 | 29.52 | 29.71 | 29.71 | -0.74% | 966,122 |
| Sep 25, 2025 | 30.44 | 30.64 | 29.73 | 29.93 | 29.93 | -3.67% | 1,343,998 |
| Sep 24, 2025 | 31.40 | 31.74 | 31.00 | 31.07 | 31.07 | -1.08% | 919,164 |
| Sep 23, 2025 | 31.66 | 32.08 | 31.32 | 31.41 | 31.41 | -0.03% | 1,254,109 |
| Sep 22, 2025 | 31.55 | 32.11 | 31.28 | 31.42 | 31.42 | -0.10% | 1,433,536 |
| Sep 19, 2025 | 32.16 | 32.16 | 30.73 | 31.45 | 31.45 | -1.56% | 3,402,888 |
| Sep 18, 2025 | 31.70 | 32.04 | 31.46 | 31.95 | 31.95 | 3.90% | 1,715,522 |
| Sep 17, 2025 | 30.20 | 31.30 | 29.95 | 30.75 | 30.75 | 2.06% | 1,237,273 |
| Sep 16, 2025 | 29.92 | 30.27 | 29.79 | 30.13 | 30.13 | 0.87% | 987,849 |
| Sep 15, 2025 | 29.86 | 30.64 | 29.72 | 29.87 | 29.87 | 0.23% | 1,376,560 |
| Sep 12, 2025 | 30.22 | 30.27 | 29.69 | 29.80 | 29.80 | -0.57% | 1,146,801 |
| Sep 11, 2025 | 30.93 | 31.20 | 29.79 | 29.97 | 29.97 | -1.77% | 1,604,458 |
| Sep 10, 2025 | 30.99 | 31.14 | 30.00 | 30.51 | 30.51 | -1.33% | 2,130,147 |
| Sep 9, 2025 | 30.44 | 30.93 | 30.21 | 30.92 | 30.92 | 1.74% | 1,494,091 |
| Sep 8, 2025 | 30.17 | 30.67 | 29.98 | 30.39 | 30.39 | -0.59% | 1,643,013 |
| Sep 5, 2025 | 30.51 | 30.98 | 30.29 | 30.57 | 30.57 | 1.56% | 1,414,587 |
| Sep 4, 2025 | 29.51 | 30.15 | 28.94 | 30.10 | 30.10 | 0.91% | 1,464,961 |
| Sep 3, 2025 | 30.50 | 30.63 | 29.37 | 29.83 | 29.83 | -2.20% | 1,136,610 |
| Sep 2, 2025 | 30.00 | 30.57 | 29.45 | 30.50 | 30.50 | -1.13% | 1,620,900 |
| Aug 29, 2025 | 31.79 | 31.96 | 30.72 | 30.85 | 30.85 | -3.62% | 1,204,009 |
| Aug 28, 2025 | 31.81 | 33.20 | 31.76 | 32.01 | 32.01 | 1.75% | 2,170,375 |
| Aug 27, 2025 | 31.42 | 31.84 | 31.23 | 31.46 | 31.46 | -0.60% | 1,777,468 |
| Aug 26, 2025 | 31.97 | 32.67 | 31.45 | 31.65 | 31.65 | -0.35% | 1,812,793 |
| Aug 25, 2025 | 32.01 | 32.16 | 31.60 | 31.76 | 31.76 | -1.15% | 842,315 |
| Aug 22, 2025 | 31.22 | 32.93 | 30.94 | 32.13 | 32.13 | 4.05% | 1,366,036 |
| Aug 21, 2025 | 30.10 | 30.92 | 29.98 | 30.88 | 30.88 | 1.31% | 802,760 |
| Aug 20, 2025 | 30.59 | 31.19 | 29.82 | 30.48 | 30.48 | -0.52% | 2,031,204 |
| Aug 19, 2025 | 30.86 | 31.12 | 30.42 | 30.64 | 30.64 | -0.62% | 1,027,977 |
| Aug 18, 2025 | 30.64 | 31.02 | 30.51 | 30.83 | 30.83 | 0.42% | 1,158,087 |
| Aug 15, 2025 | 31.13 | 31.13 | 30.55 | 30.70 | 30.70 | -1.29% | 1,159,770 |
| Aug 14, 2025 | 31.13 | 31.39 | 30.73 | 31.10 | 31.10 | -2.39% | 916,405 |
| Aug 13, 2025 | 32.07 | 32.35 | 31.56 | 31.86 | 31.86 | -0.09% | 1,074,296 |
| Aug 12, 2025 | 30.29 | 32.22 | 30.02 | 31.89 | 31.89 | 6.98% | 1,715,889 |
| Aug 11, 2025 | 30.85 | 30.94 | 29.71 | 29.81 | 29.81 | -3.12% | 1,193,313 |
| Aug 8, 2025 | 30.78 | 31.06 | 30.12 | 30.77 | 30.77 | 0.16% | 1,850,303 |
| Aug 7, 2025 | 31.46 | 31.59 | 30.48 | 30.72 | 30.72 | -0.29% | 1,028,725 |
| Aug 6, 2025 | 30.97 | 31.00 | 30.28 | 30.81 | 30.81 | -1.38% | 1,066,254 |
| Aug 5, 2025 | 31.78 | 31.78 | 30.46 | 31.24 | 31.24 | -0.73% | 1,245,464 |
| Aug 4, 2025 | 31.49 | 31.78 | 31.10 | 31.47 | 31.47 | 0.67% | 1,287,498 |
| Aug 1, 2025 | 31.13 | 31.48 | 30.29 | 31.26 | 31.26 | -0.48% | 2,066,210 |
| Jul 31, 2025 | 32.21 | 32.70 | 30.50 | 31.41 | 31.41 | -7.26% | 3,424,098 |
| Jul 30, 2025 | 34.41 | 34.51 | 33.16 | 33.87 | 33.87 | -0.41% | 2,909,506 |