IMRX vs SION (Immuneering Corporation vs Sionna Therapeutics Inc.)
Showing Closing Date Range from Sep, 13 to Sep, 14, 2026.
Normalized cumulative comparison anchored at 0.00% baseline to illustrate pure alpha, return divergence, and market momentum.
Today's Session Official Close
The regular trading session has completed and official closing prices are verified as of 7:45 PM ET. All metrics below represent finalized session performance.
SION leads by +3.81% Alpha Spread Today
IMRX is trading at +1.41% while SION is at +5.22% .
Started At
Official opening auction price
Closed At
Official exchange closing price
Gained / Lost Today
Net return against previous session close
Today's Trading Range Position
Where each asset is currently trading relative to its Day Low and Day High
Session Liquidity & Volume
Trading activity, share volume, and estimated dollar liquidity
Session Ledger Comparison
Direct side-by-side breakdown of today's key auction and price metrics
| Metric | IMRX | SION | Head-to-Head Advantage |
|---|---|---|---|
| Today's Return | +1.41% | +5.22% | SION +3.81% |
| Net Dollar Move | +$0.06 | +$0.41 | SION higher move |
| Open Price | $4.28 | $7.84 | Gap: -1.15% vs -0.13% |
| Day High | $4.44 | $8.54 | Session peaks |
| Day Low | $4.26 | $7.84 | Session troughs |
| Intraday Spread | $0.18 | $0.70 | High/Low spread |
| Share Volume | 493.7K | 1.21M | SION more active |
| Est. Dollar Volume | $2.14M | $9.98M | SION higher liquidity |
Explore IMRX vs SION Over Extended Timeframes
Today's session isolates intraday momentum. Switch to normalized multi-day timeframes to analyze historical correlations, cumulative returns, and divergence charts.