Archimedes Tech SPAC Partners II Co. (ATII)
NASDAQ: ATII · Real-Time Price · USD
9.81
+2.64 (36.82%)
At close: Oct 21, 2026, 4:00 PM EDT
9.50
-0.31 (-3.16%)
After-hours: Oct 21, 2026, 5:17 PM EDT
ATII Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Oct 21, 2026 | 7.10 | 10.37 | 7.02 | 9.81 | 9.81 | 36.82% | 215,290 |
| Oct 20, 2026 | 8.45 | 8.88 | 6.63 | 7.17 | 7.17 | -16.09% | 92,942 |
| Oct 19, 2026 | 9.27 | 9.31 | 8.41 | 8.55 | 8.55 | -8.02% | 44,924 |
| Oct 16, 2026 | 9.37 | 9.83 | 8.94 | 9.29 | 9.29 | 4.85% | 17,682 |
| Oct 15, 2026 | 9.94 | 9.99 | 7.59 | 8.86 | 8.86 | -11.93% | 99,710 |
| Oct 14, 2026 | 10.60 | 10.70 | 8.76 | 10.06 | 10.06 | -6.07% | 64,604 |
| Oct 13, 2026 | 10.69 | 10.74 | 10.63 | 10.71 | 10.71 | 0.09% | 555,988 |
| Oct 12, 2026 | 10.69 | 10.70 | 10.66 | 10.70 | 10.70 | 0.09% | 427,360 |
| Oct 9, 2026 | 10.70 | 10.70 | 10.69 | 10.69 | 10.69 | -0.09% | 883,193 |
| Oct 8, 2026 | 10.69 | 10.70 | 10.68 | 10.70 | 10.70 | - | 469,725 |
| Oct 7, 2026 | 10.70 | 10.70 | 10.69 | 10.70 | 10.70 | - | 745,406 |
| Oct 6, 2026 | 10.70 | 10.71 | 10.69 | 10.70 | 10.70 | - | 52,969 |
| Oct 5, 2026 | 10.71 | 10.71 | 10.69 | 10.70 | 10.70 | 0.19% | 90,771 |
| Oct 2, 2026 | 10.70 | 10.70 | 10.68 | 10.68 | 10.68 | -0.09% | 57,365 |
| Oct 1, 2026 | 10.69 | 10.70 | 10.68 | 10.69 | 10.69 | 0.09% | 28,347 |
| Sep 30, 2026 | 10.69 | 10.70 | 10.68 | 10.68 | 10.68 | -0.09% | 724,300 |
| Sep 29, 2026 | 10.69 | 10.69 | 10.67 | 10.69 | 10.69 | 0.05% | 792,767 |
| Sep 28, 2026 | 10.68 | 10.69 | 10.67 | 10.69 | 10.69 | -0.05% | 317,653 |
| Sep 25, 2026 | 10.69 | 10.70 | 10.68 | 10.69 | 10.69 | 0.05% | 159,030 |
| Sep 24, 2026 | 10.70 | 10.72 | 10.68 | 10.69 | 10.69 | 0.05% | 2,118,166 |
| Sep 23, 2026 | 10.70 | 10.71 | 10.68 | 10.68 | 10.68 | -0.19% | 85,845 |
| Sep 22, 2026 | 10.69 | 10.70 | 10.68 | 10.70 | 10.70 | 0.14% | 145,918 |
| Sep 21, 2026 | 10.67 | 10.69 | 10.67 | 10.69 | 10.69 | 0.14% | 142,982 |
| Sep 18, 2026 | 10.67 | 10.68 | 10.65 | 10.67 | 10.67 | 0.05% | 1,817,885 |
| Sep 17, 2026 | 10.66 | 10.68 | 10.66 | 10.67 | 10.67 | 0.05% | 13,395 |
| Sep 16, 2026 | 10.67 | 10.67 | 10.66 | 10.66 | 10.66 | - | 142,591 |
| Sep 15, 2026 | 10.67 | 10.67 | 10.65 | 10.66 | 10.66 | -0.05% | 518,003 |
| Sep 14, 2026 | 10.64 | 10.67 | 10.64 | 10.67 | 10.67 | 0.23% | 191,380 |
| Sep 11, 2026 | 10.68 | 10.68 | 10.64 | 10.64 | 10.64 | -0.09% | 57,049 |
| Sep 10, 2026 | 10.65 | 10.67 | 10.65 | 10.65 | 10.65 | -0.09% | 26,536 |
| Sep 9, 2026 | 10.65 | 10.66 | 10.64 | 10.66 | 10.66 | 0.09% | 381,381 |
| Sep 8, 2026 | 10.66 | 10.67 | 10.65 | 10.65 | 10.65 | - | 67,235 |
| Sep 4, 2026 | 10.64 | 10.66 | 10.64 | 10.65 | 10.65 | 0.09% | 9,303 |
| Sep 3, 2026 | 10.67 | 10.67 | 10.64 | 10.64 | 10.64 | -0.19% | 87,901 |
| Sep 2, 2026 | 10.71 | 10.71 | 10.65 | 10.66 | 10.66 | 0.09% | 123,402 |
| Sep 1, 2026 | 10.70 | 10.70 | 10.64 | 10.65 | 10.65 | -0.37% | 57,617 |
| Aug 31, 2026 | 10.67 | 10.70 | 10.64 | 10.69 | 10.69 | 0.19% | 178,786 |
| Aug 28, 2026 | 10.70 | 10.70 | 10.63 | 10.67 | 10.67 | - | 316,900 |
| Aug 27, 2026 | 10.67 | 10.73 | 10.64 | 10.67 | 10.67 | 0.09% | 328,835 |
| Aug 26, 2026 | 10.68 | 10.71 | 10.65 | 10.66 | 10.66 | 0.09% | 20,569 |
| Aug 25, 2026 | 10.68 | 10.68 | 10.65 | 10.65 | 10.65 | - | 32,251 |
| Aug 24, 2026 | 10.70 | 10.71 | 10.65 | 10.65 | 10.65 | -0.33% | 53,877 |
| Aug 21, 2026 | 10.64 | 10.71 | 10.62 | 10.69 | 10.69 | 0.52% | 369,254 |
| Aug 20, 2026 | 10.62 | 10.64 | 10.62 | 10.63 | 10.63 | 0.09% | 141,253 |
| Aug 19, 2026 | 10.62 | 10.63 | 10.62 | 10.62 | 10.62 | - | 74,464 |
| Aug 18, 2026 | 10.65 | 10.66 | 10.62 | 10.62 | 10.62 | -0.19% | 224,594 |
| Aug 17, 2026 | 10.65 | 10.66 | 10.64 | 10.64 | 10.64 | - | 98,282 |
| Aug 14, 2026 | 10.65 | 10.69 | 10.64 | 10.64 | 10.64 | -0.19% | 62,402 |
| Aug 13, 2026 | 10.65 | 10.67 | 10.64 | 10.66 | 10.66 | 0.19% | 81,174 |
| Aug 12, 2026 | 10.70 | 10.70 | 10.64 | 10.64 | 10.64 | -0.09% | 40,095 |