Dyne Therapeutics (DYN) Options Chain
NASDAQ: DYNHealth CareBiotechnology: Pharmaceutical PreparationsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Nov 20, 2026
- Days to expiration
- 40
- Share price
- $16.64
- Put/call ratio (OI)
- 0.05
- Put/call ratio (volume)
- 0.06
- Expected move
- ±$3.57
- Open interest (C / P)
- 12.38K / 667
DYN options summary
The DYN options chain for the November 20, 2026 expiration lists 6 call and 5 put contracts, with 40 days until expiration. Open interest stands at 12,376 calls and 667 puts, a put/call ratio of 0.05, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $17.00 strike is 64.8%, which implies the market expects a move of about ±$3.57 (21.5%) in Dyne Therapeutics stock by expiration.
The most open interest sits at the $18.00 call (10.03K contracts) and the $17.00 put (350 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
DYN options chain · November 20, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 6.70 | 5.30 | 8.50 | 10.00 | — | — | — | |||||
| — | — | — | 13.00 | 0.00 | 1.15 | 0.45 | |||||
| — | — | — | 15.00 | 0.00 | 1.75 | 1.13 | |||||
| — | — | — | 16.00 | 0.35 | 2.20 | 1.43 | |||||
| 1.50 | 0.60 | 1.90 | 17.00 | 0.80 | 2.55 | 1.65 | |||||
| 0.99 | 0.60 | 1.05 | 18.00 | 1.30 | 3.40 | 2.38 | |||||
| 0.70 | 0.05 | 1.00 | 19.00 | — | — | — | |||||
| 0.42 | 0.25 | 0.70 | 20.00 | — | — | — | |||||
| 0.15 | 0.00 | 1.15 | 25.00 | — | — | — | |||||
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 DYN put/call ratio?
For the November 20, 2026 expiration, the DYN put/call ratio based on open interest is 0.05 (667 puts vs 12,376 calls), and 0.06 based on today's volume. A ratio above 1 means more puts than calls.
What is DYN's implied volatility?
At-the-money implied volatility for DYN options expiring November 20, 2026 is about 64.8%, an annualized estimate of how much the market expects Dyne Therapeutics stock to move.
How many DYN option expiration dates are there?
DYN has 6 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.