SION down 17.1% on Sep 18 2026
SION-17.1%on Fri Sep 18 2026
Sionna Therapeutics, Inc. Common Stock was down 17.1% on the day at $5.96, ranked #135 on 2.1× its usual five-minute volume, when TapeRank recorded this unexplained move at 15:55 ET during regular hours.
WHAT THE ROW LOOKED LIKE
LAST5.96
DAY▼ 17.1%
5 MIN▼ 1.98%
5M RVOL2.1×
5M $VOL$547K
FLOAT*45.2M
RANK#135
SESSIONREGULAR
* FLOAT IS SHARES OUTSTANDING; TRUE FREE FLOAT IS NOT AVAILABLE
AI VERDICT
No verdict was committed for this move.
Either the model had not reached this name before the event was finalized, or its answer hedged, and a hedged verdict is withheld rather than shown. Nothing was filled in afterwards.
FILINGS · 24H BEFORE THE MOVE
No SEC filings in the 24 hours before this was recorded. A move on an unfiled press release shows nothing here, which is what UNEXPLAINED means.
SESSION LEVELS AT CAPTURE
VWAP6.44
HOD7.19
LOD5.92
OR HIGH—
OR LOW—
PREV CLOSE7.18
PM HIGH—
PM LOW—
GAP▼ 0.84%
— MEANS THE LEVEL DID NOT EXIST YET AT THAT INSTANT, NOT ZERO