Deep Fission Inc. (FISN)
Showing Closing Date Range from Oct 1 to Oct 29, 2026 compared to Sep 2 to Sep 30, 2026.
Compare Last 28 Days with Previous Period
Investor Relations:deepfission.com/investors
Current Period Close
$3.04
Oct 01, 2026 - Oct 29, 2026
Previous Period Close
$5.12
Sep 02, 2026 - Sep 30, 2026
Net Comparison Delta
$-2.08 (-40.63%)
Relative performance vs prior benchmark
Historical Quotes & Breakdown(20 dates)
| Current Date | Current Close | Previous Date | Previous Close | Delta (%) |
|---|---|---|---|---|
| Oct 29, 2026 | $3.04 | Sep 30, 2026 | $5.12 | -40.63% |
| Oct 28, 2026 | $3.31 | Sep 29, 2026 | $5.25 | -36.95% |
| Oct 27, 2026 | $2.69 | Sep 28, 2026 | $5.42 | -50.37% |
| Oct 26, 2026 | $2.16 | Sep 25, 2026 | $6.25 | -65.44% |
| Oct 23, 2026 | $2.30 | Sep 24, 2026 | $6.95 | -66.91% |
| Oct 22, 2026 | $2.41 | Sep 23, 2026 | $7.80 | -69.10% |
| Oct 21, 2026 | $2.63 | Sep 22, 2026 | $8.12 | -67.61% |
| Oct 20, 2026 | $2.81 | Sep 21, 2026 | $7.82 | -64.07% |
| Oct 19, 2026 | $3.66 | Sep 18, 2026 | $8.47 | -56.79% |
| Oct 16, 2026 | $3.45 | Sep 17, 2026 | $8.12 | -57.51% |
| Oct 15, 2026 | $3.65 | Sep 16, 2026 | $7.10 | -48.59% |
| Oct 14, 2026 | $3.85 | Sep 15, 2026 | $7.11 | -45.85% |
| Oct 13, 2026 | $4.01 | Sep 14, 2026 | $7.16 | -43.99% |
| Oct 12, 2026 | $4.18 | Sep 11, 2026 | $7.16 | -41.62% |
| Oct 09, 2026 | $4.45 | Sep 10, 2026 | $6.75 | -34.07% |
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