Stoke Therapeutics (STOK) Options Chain
NASDAQ: STOKHealth CareBiotechnology: Pharmaceutical PreparationsUSD
Market open · Delayed 15 min · as of Oct 9, 3:21 PM ET
Expiration date
- Expiration
- Oct 16, 2026
- Days to expiration
- 7
- Share price
- $24.87
- Put/call ratio (OI)
- 0.12
- Put/call ratio (volume)
- 1.67
- Expected move
- ±$1.56
- Open interest (C / P)
- 428 / 53
STOK options summary
The STOK options chain for the October 16, 2026 expiration lists 5 call and 4 put contracts, with 7 days until expiration. Open interest stands at 428 calls and 53 puts, a put/call ratio of 0.12, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $25.00 strike is 45.2%, which implies the market expects a move of about ±$1.56 (6.3%) in Stoke Therapeutics stock by expiration.
The most open interest sits at the $30.00 call (358 contracts) and the $40.00 put (48 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
STOK options chain · October 16, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 6.10 | 4.50 | 7.50 | 20.00 | — | — | — | |||||
| 7.80 | 0.00 | 0.00 | 25.00 | 0.00 | 2.75 | 1.15 | |||||
| 2.45 | 0.05 | 0.95 | 30.00 | 3.50 | 7.50 | 2.00 | |||||
| 0.20 | 0.00 | 4.90 | 35.00 | 8.60 | 12.50 | 5.30 | |||||
| — | — | — | 40.00 | 14.80 | 17.50 | 15.70 | |||||
| 0.30 | 0.00 | 4.90 | 45.00 | — | — | — | |||||
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 STOK put/call ratio?
For the October 16, 2026 expiration, the STOK put/call ratio based on open interest is 0.12 (53 puts vs 428 calls), and 1.67 based on today's volume. A ratio above 1 means more puts than calls.
What is STOK's implied volatility?
At-the-money implied volatility for STOK options expiring October 16, 2026 is about 45.2%, an annualized estimate of how much the market expects Stoke Therapeutics stock to move.
How many STOK option expiration dates are there?
STOK has 5 listed expiration dates, from Oct 16, 2026 to Dec 17, 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.