Deep Fission, Inc. (FISN)
NASDAQ: FISN · Real-Time Price · USD
5.47
+0.09 (1.67%)
At close: Oct 6, 2026, 4:00 PM EDT
5.80
+0.33 (6.03%)
Pre-market: Oct 7, 2026, 7:23 AM EDT
Deep Fission Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Oct 6, 2026 | 5.40 | 5.85 | 5.40 | 5.47 | 5.47 | 1.77% | 278,144 |
| Oct 5, 2026 | 5.60 | 5.73 | 5.31 | 5.38 | 5.38 | -3.50% | 198,111 |
| Oct 2, 2026 | 5.44 | 6.05 | 5.25 | 5.57 | 5.57 | 7.53% | 520,780 |
| Oct 1, 2026 | 5.15 | 5.24 | 4.90 | 5.18 | 5.18 | 0.97% | 336,740 |
| Sep 30, 2026 | 5.29 | 5.47 | 5.05 | 5.13 | 5.13 | -2.19% | 282,141 |
| Sep 29, 2026 | 5.64 | 5.75 | 5.20 | 5.25 | 5.25 | -3.23% | 437,034 |
| Sep 28, 2026 | 6.30 | 6.45 | 5.40 | 5.42 | 5.42 | -13.28% | 579,476 |
| Sep 25, 2026 | 6.64 | 6.75 | 6.23 | 6.25 | 6.25 | -10.07% | 581,412 |
| Sep 24, 2026 | 7.77 | 7.87 | 6.84 | 6.95 | 6.95 | -10.90% | 710,622 |
| Sep 23, 2026 | 8.15 | 8.21 | 7.62 | 7.80 | 7.80 | -3.94% | 316,279 |
| Sep 22, 2026 | 7.97 | 8.36 | 7.88 | 8.12 | 8.12 | 3.84% | 407,510 |
| Sep 21, 2026 | 8.47 | 8.58 | 7.68 | 7.82 | 7.82 | -7.67% | 294,393 |
| Sep 18, 2026 | 8.15 | 8.79 | 7.96 | 8.47 | 8.47 | 4.31% | 1,535,344 |
| Sep 17, 2026 | 7.19 | 8.24 | 7.01 | 8.12 | 8.12 | 14.37% | 345,018 |
| Sep 16, 2026 | 7.13 | 7.38 | 6.90 | 7.10 | 7.10 | -0.14% | 214,669 |
| Sep 15, 2026 | 7.18 | 7.57 | 7.04 | 7.11 | 7.11 | -0.70% | 164,078 |
| Sep 14, 2026 | 7.11 | 7.37 | 6.68 | 7.16 | 7.16 | - | 244,726 |
| Sep 11, 2026 | 6.89 | 7.39 | 6.75 | 7.16 | 7.16 | 6.07% | 221,791 |
| Sep 10, 2026 | 7.00 | 7.14 | 6.73 | 6.75 | 6.75 | -5.06% | 192,471 |
| Sep 9, 2026 | 6.92 | 7.24 | 6.80 | 7.11 | 7.11 | 1.86% | 205,843 |
| Sep 8, 2026 | 7.19 | 7.25 | 6.80 | 6.98 | 6.98 | -2.38% | 257,417 |
| Sep 4, 2026 | 7.20 | 7.38 | 7.04 | 7.15 | 7.15 | 0.14% | 159,451 |
| Sep 3, 2026 | 6.97 | 7.45 | 6.91 | 7.14 | 7.14 | 2.44% | 259,419 |
| Sep 2, 2026 | 6.38 | 6.98 | 6.17 | 6.97 | 6.97 | 9.08% | 339,069 |
| Sep 1, 2026 | 6.70 | 6.84 | 6.10 | 6.39 | 6.39 | -4.77% | 367,130 |
| Aug 31, 2026 | 6.77 | 7.03 | 6.62 | 6.71 | 6.71 | 2.29% | 209,728 |
| Aug 28, 2026 | 6.86 | 7.10 | 6.42 | 6.56 | 6.56 | -5.34% | 247,162 |
| Aug 27, 2026 | 6.93 | 7.24 | 6.76 | 6.93 | 6.93 | 0.58% | 182,859 |
| Aug 26, 2026 | 6.98 | 7.33 | 6.77 | 6.89 | 6.89 | -0.58% | 165,385 |
| Aug 25, 2026 | 7.28 | 7.41 | 6.78 | 6.93 | 6.93 | -2.81% | 289,083 |
| Aug 24, 2026 | 8.20 | 8.21 | 7.03 | 7.13 | 7.13 | -13.58% | 318,146 |
| Aug 21, 2026 | 7.83 | 8.30 | 7.83 | 8.25 | 8.25 | 6.18% | 146,503 |
| Aug 20, 2026 | 8.02 | 8.03 | 7.68 | 7.77 | 7.77 | -2.88% | 123,320 |
| Aug 19, 2026 | 7.98 | 8.34 | 7.81 | 8.00 | 8.00 | 2.30% | 196,640 |
| Aug 18, 2026 | 8.03 | 8.24 | 7.64 | 7.82 | 7.82 | -3.69% | 236,323 |
| Aug 17, 2026 | 8.75 | 9.05 | 8.02 | 8.12 | 8.12 | -6.02% | 188,720 |
| Aug 14, 2026 | 8.26 | 8.87 | 8.20 | 8.64 | 8.64 | 4.73% | 183,179 |
| Aug 13, 2026 | 8.40 | 8.69 | 8.10 | 8.25 | 8.25 | -1.08% | 202,977 |
| Aug 12, 2026 | 8.26 | 8.88 | 8.20 | 8.34 | 8.34 | 1.09% | 172,545 |
| Aug 11, 2026 | 8.12 | 8.41 | 7.77 | 8.25 | 8.25 | 3.77% | 215,159 |
| Aug 10, 2026 | 9.10 | 9.20 | 7.91 | 7.95 | 7.95 | -11.57% | 407,947 |
| Aug 7, 2026 | 9.25 | 9.55 | 8.76 | 8.99 | 8.99 | -2.49% | 181,136 |
| Aug 6, 2026 | 8.61 | 9.54 | 8.52 | 9.22 | 9.22 | 5.98% | 252,396 |
| Aug 5, 2026 | 9.03 | 9.20 | 8.40 | 8.70 | 8.70 | -4.40% | 425,166 |
| Aug 4, 2026 | 9.62 | 10.50 | 8.82 | 9.10 | 9.10 | -8.27% | 295,555 |
| Aug 3, 2026 | 9.53 | 10.11 | 9.40 | 9.92 | 9.92 | 5.42% | 198,687 |
| Jul 31, 2026 | 9.75 | 10.02 | 9.41 | 9.41 | 9.41 | -2.18% | 53,894 |
| Jul 30, 2026 | 9.53 | 9.70 | 9.30 | 9.62 | 9.62 | -1.03% | 84,001 |
| Jul 29, 2026 | 10.19 | 10.19 | 9.55 | 9.72 | 9.72 | -1.72% | 122,455 |
| Jul 28, 2026 | 9.84 | 10.00 | 8.80 | 9.89 | 9.89 | 1.02% | 320,117 |