ALT5 Sigma Corporation (ALTS)
NASDAQ: ALTS · Real-Time Price · USD
4.010
-0.120 (-2.91%)
At close: Sep 9, 2025, 4:00 PM
3.990
-0.020 (-0.50%)
Pre-market: Sep 10, 2025, 6:20 AM EDT
ALT5 Sigma Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Sep 9, 2025 | 4.13 | 4.38 | 3.36 | 4.01 | 4.01 | -2.91% | 13,340,240 |
| Sep 8, 2025 | 4.61 | 4.61 | 3.97 | 4.13 | 4.13 | -6.03% | 14,280,064 |
| Sep 5, 2025 | 3.92 | 4.41 | 3.78 | 4.40 | 4.40 | 13.57% | 18,986,613 |
| Sep 4, 2025 | 3.96 | 4.21 | 3.55 | 3.87 | 3.87 | -13.81% | 27,746,124 |
| Sep 3, 2025 | 5.57 | 5.57 | 4.45 | 4.49 | 4.49 | -19.53% | 24,934,610 |
| Sep 2, 2025 | 6.62 | 6.68 | 5.48 | 5.58 | 5.58 | -29.19% | 33,885,744 |
| Aug 29, 2025 | 8.32 | 8.74 | 7.52 | 7.88 | 7.88 | -5.63% | 19,508,182 |
| Aug 28, 2025 | 7.18 | 8.43 | 7.02 | 8.35 | 8.35 | 21.90% | 21,237,185 |
| Aug 27, 2025 | 7.20 | 7.73 | 6.81 | 6.85 | 6.85 | -4.20% | 12,456,830 |
| Aug 26, 2025 | 7.00 | 7.23 | 6.71 | 7.15 | 7.15 | 5.15% | 10,928,450 |
| Aug 25, 2025 | 6.43 | 7.33 | 6.37 | 6.80 | 6.80 | 3.50% | 18,255,282 |
| Aug 22, 2025 | 5.55 | 6.69 | 5.50 | 6.57 | 6.57 | 19.13% | 15,775,203 |
| Aug 21, 2025 | 5.76 | 5.90 | 5.50 | 5.52 | 5.52 | -6.37% | 6,178,629 |
| Aug 20, 2025 | 5.56 | 5.95 | 5.20 | 5.89 | 5.89 | 7.48% | 9,830,730 |
| Aug 19, 2025 | 6.52 | 6.55 | 5.25 | 5.48 | 5.48 | -10.46% | 15,736,347 |
| Aug 18, 2025 | 6.21 | 6.36 | 5.87 | 6.12 | 6.12 | 3.03% | 10,048,616 |
| Aug 15, 2025 | 7.31 | 7.31 | 5.86 | 5.94 | 5.94 | -17.61% | 14,320,574 |
| Aug 14, 2025 | 7.35 | 7.58 | 7.03 | 7.21 | 7.21 | 3.59% | 16,542,216 |
| Aug 13, 2025 | 6.65 | 7.04 | 6.10 | 6.96 | 6.96 | 16.78% | 22,003,261 |
| Aug 12, 2025 | 7.04 | 7.20 | 5.12 | 5.96 | 5.96 | -9.70% | 29,796,067 |
| Aug 11, 2025 | 8.42 | 9.76 | 6.02 | 6.60 | 6.60 | -26.42% | 57,959,962 |
| Aug 8, 2025 | 8.18 | 9.04 | 8.05 | 8.97 | 8.97 | 9.66% | 575,567 |
| Aug 7, 2025 | 6.79 | 8.20 | 6.64 | 8.18 | 8.18 | 20.83% | 570,021 |
| Aug 6, 2025 | 6.68 | 6.84 | 6.36 | 6.77 | 6.77 | 0.59% | 98,022 |
| Aug 5, 2025 | 6.79 | 6.95 | 6.59 | 6.73 | 6.73 | -1.17% | 131,132 |
| Aug 4, 2025 | 6.30 | 6.83 | 6.30 | 6.81 | 6.81 | 8.44% | 142,867 |
| Aug 1, 2025 | 6.17 | 6.39 | 6.00 | 6.28 | 6.28 | 1.29% | 126,264 |
| Jul 31, 2025 | 6.25 | 6.68 | 6.16 | 6.20 | 6.20 | -0.48% | 172,720 |
| Jul 30, 2025 | 6.14 | 6.58 | 6.08 | 6.23 | 6.23 | 3.23% | 257,612 |
| Jul 29, 2025 | 6.91 | 6.99 | 5.98 | 6.04 | 6.04 | -13.54% | 375,235 |
| Jul 28, 2025 | 7.13 | 7.30 | 6.85 | 6.98 | 6.98 | -1.41% | 234,664 |
| Jul 25, 2025 | 7.10 | 7.35 | 6.91 | 7.08 | 7.08 | -0.28% | 268,125 |
| Jul 24, 2025 | 7.32 | 7.60 | 6.95 | 7.10 | 7.10 | -2.61% | 258,942 |
| Jul 23, 2025 | 7.32 | 7.46 | 6.97 | 7.29 | 7.29 | 0.97% | 200,267 |
| Jul 22, 2025 | 7.35 | 7.70 | 7.10 | 7.22 | 7.22 | -2.04% | 149,869 |
| Jul 21, 2025 | 7.66 | 7.84 | 7.30 | 7.37 | 7.37 | 0.68% | 212,298 |
| Jul 18, 2025 | 7.94 | 8.07 | 7.27 | 7.32 | 7.32 | -6.39% | 215,065 |
| Jul 17, 2025 | 7.69 | 8.12 | 7.60 | 7.82 | 7.82 | 1.96% | 307,282 |
| Jul 16, 2025 | 7.30 | 7.88 | 7.17 | 7.67 | 7.67 | 6.97% | 313,620 |
| Jul 15, 2025 | 7.00 | 7.26 | 6.60 | 7.17 | 7.17 | 3.02% | 300,487 |
| Jul 14, 2025 | 7.89 | 7.95 | 6.90 | 6.96 | 6.96 | -11.68% | 252,139 |
| Jul 11, 2025 | 7.50 | 8.15 | 7.35 | 7.88 | 7.88 | 4.10% | 314,610 |
| Jul 10, 2025 | 7.58 | 7.67 | 7.17 | 7.57 | 7.57 | -1.17% | 247,431 |
| Jul 9, 2025 | 7.32 | 7.68 | 7.08 | 7.66 | 7.66 | 6.54% | 210,766 |
| Jul 8, 2025 | 7.55 | 7.88 | 7.06 | 7.19 | 7.19 | -4.64% | 213,981 |
| Jul 7, 2025 | 8.16 | 8.36 | 7.11 | 7.54 | 7.54 | -8.38% | 358,996 |
| Jul 3, 2025 | 7.86 | 8.38 | 7.70 | 8.23 | 8.23 | 4.44% | 163,407 |
| Jul 2, 2025 | 7.60 | 8.14 | 7.39 | 7.88 | 7.88 | 4.16% | 337,727 |
| Jul 1, 2025 | 7.41 | 7.79 | 6.62 | 7.57 | 7.57 | 4.42% | 620,280 |
| Jun 30, 2025 | 8.20 | 8.58 | 7.24 | 7.25 | 7.25 | -10.89% | 380,367 |