stockNASDAQ: SION • Today's Updates
Sionna Therapeutics Inc. (SION) Today Close
Showing Closing Date Range from Oct 8 to Oct 9, 2026.
Investor Relations:sionnatx.com
NASDAQ MarketWeekend Closed Wall Street: 10:32 AM ET
Weekend • Markets Closed
US stock markets are closed over the weekend and will reopen Monday at 9:30 AM ET. Displaying the final completed trading session from Oct 09, 2026.
Multi-Day Trends:View 28-Day Chart
Started At
Market Open Opening price at session start (9:30 AM ET)
$4.93
Opening Gap+$0.03(+0.61%)
Last Finalized Close
FRIDAY CLOSESession close from Oct 09, 2026
$4.90
Session DateOct 09, 2026
Gained Today
GAIN Net movement vs previous close
+$0.00 (+0.00%)
Intraday (from open)$-0.03 (-0.61%)
Day's High & Low Range
Session Low
$4.83
Session High
$5.12
Low ($4.83)Last Finalized Close ($4.90)High ($5.12)
Trading Activity & Liquidity
Shares Traded
632.3K
632,349 shares
Dollar Volume
$3.10M
Close × Volume traded
Session Turnover$3.10M USD
Session Statistics Breakdown
Key opening, settlement, and trading metrics for Sionna Therapeutics Inc. (SION).
Oct 09, 2026
Started At (Open)
$4.93
Previous Close
$4.90
Session High
$5.12
Session Low
$4.83
Last Finalized Close
$4.90
Gained / Lost ($)
+$0.00
Gained / Lost (%)
+0.00%
Day's Spread
$0.29