Sionna Therapeutics, Inc. (SION) short interest & options flow
NASDAQSionna Therapeutics has suffered one of the sharpest single-week crashes in small-cap biotech this year, falling 91% to $4.50 after the PreciSION Phase IIa readout delivered results that clearly failed to meet expectations. The analyst response was swift and brutal. Wedbush's Laura Chico — who initiated coverage just three months ago with an Outperform and a $53 target — downgraded…
SION cost to borrow surges to 2.17%, up 267% in one week as short sellers face rising borrow costs ahead of earnings.
- Market cap
- $148M
- Next earnings
- 12 Nov 2026
Key data as of 9 Nov 2026
Latest signals on SION
- Cost to Borrow
SION cost to borrow surges to 2.17%, up 267% in one week as short sellers face rising borrow costs ahead of earnings.
SION news and analysis
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