Sionna Therapeutics (SION) Options Chain
NASDAQ: SIONHealth CareBiotechnology: Pharmaceutical PreparationsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Apr 16, 2027
- Days to expiration
- 187
- Share price
- $4.90
- Put/call ratio (OI)
- 0.24
- Put/call ratio (volume)
- 0.69
- ATM implied volatility
- 106.6%
- Expected move
- ±$3.74
- Open interest (C / P)
- 199 / 47
SION options summary
The SION options chain for the April 16, 2027 expiration lists 4 call and 3 put contracts, with 187 days until expiration. Open interest stands at 199 calls and 47 puts, a put/call ratio of 0.24, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $5.00 strike is 106.6%, which implies the market expects a move of about ±$3.74 (76.3%) in Sionna Therapeutics stock by expiration.
The most open interest sits at the $7.50 call (115 contracts) and the $5.00 put (32 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
SION options chain · April 16, 2027
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| — | — | — | 2.50 | 0.05 | 0.95 | 0.19 | |||||
| 1.24 | 1.25 | 1.65 | 5.00 | 0.05 | 2.95 | 1.10 | |||||
| 0.92 | 0.30 | 1.15 | 7.50 | 0.70 | 5.40 | 2.80 | |||||
| 2.47 | 0.00 | 4.60 | 10.00 | — | — | — | |||||
| 0.50 | 0.00 | 0.95 | 12.50 | — | — | — | |||||
In-the-money callsIn-the-money puts. IV = implied volatility, OI = open interest (contracts). Each contract covers 100 shares. Quotes delayed at least 15 minutes.
Frequently asked questions
What is the SION put/call ratio?
For the April 16, 2027 expiration, the SION put/call ratio based on open interest is 0.24 (47 puts vs 199 calls), and 0.69 based on today's volume. A ratio above 1 means more puts than calls.
What is SION's implied volatility?
At-the-money implied volatility for SION options expiring April 16, 2027 is about 106.6%, an annualized estimate of how much the market expects Sionna Therapeutics stock to move.
How many SION option expiration dates are there?
SION has 4 listed expiration dates, from Oct 16, 2026 to Apr 16, 2027.
What does "in the money" mean?
A call is in the money when the strike price is below the current share price; a put is in the money when the strike is above it. In-the-money contracts have intrinsic value and are shaded in the table.