stockNASDAQ: FISN • Today's Updates
Deep Fission Inc. (FISN) Today Close
Showing Closing Date Range from Oct 6 to Oct 7, 2026.
Investor Relations:deepfission.com/investors
NASDAQ MarketBefore the Open Wall Street: 9:02 AM ET
Before the Open • Session Opens at 9:30 AM ET
Regular trading in New York opens at 9:30 AM ET (9:02 AM ET). Displaying the most recent finalized session (Oct 07, 2026) below as reference.
Multi-Day Trends:View 28-Day Chart
Started At
Market Open Opening price at session start (9:30 AM ET)
$5.40
Opening Gap$-0.07(-1.28%)
Last Finalized Close
PREVIOUS CLOSEFinalized close from Oct 07, 2026
$5.08
Session DateOct 07, 2026
Lost Today
LOSS Net movement vs previous close
$-0.39 (-7.13%)
Intraday (from open)$-0.32 (-5.93%)
Day's High & Low Range
Session Low
$5.06
Session High
$5.46
Low ($5.06)Last Finalized Close ($5.08)High ($5.46)
Trading Activity & Liquidity
Shares Traded
194.3K
194,293 shares
Dollar Volume
$987.0K
Close × Volume traded
Session Turnover$987.0K USD
Session Statistics Breakdown
Key opening, settlement, and trading metrics for Deep Fission Inc. (FISN).
Oct 07, 2026
Started At (Open)
$5.40
Previous Close
$5.47
Session High
$5.46
Session Low
$5.06
Last Finalized Close
$5.08
Gained / Lost ($)
$-0.39
Gained / Lost (%)
-7.13%
Day's Spread
$0.40