Dyne Therapeutics (DYN) Options Chain

NASDAQ: DYNHealth CareBiotechnology: Pharmaceutical PreparationsUSD

16.64+0.27 (+1.65%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Expiration date

Expiration: Dec 17, 2027
Days to expiration: 433
Share price: $16.64
Put/call ratio (OI): 1.23
Put/call ratio (volume): 1.11
ATM implied volatility: 87.1%
Expected move: ±$15.79
Open interest (C / P): 1.17K / 1.44K

DYN options summary

The DYN options chain for the December 17, 2027 expiration lists 14 call and 11 put contracts, with 433 days until expiration. Open interest stands at 1,169 calls and 1,435 puts, a put/call ratio of 1.23, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $17.00 strike is 87.1%, which implies the market expects a move of about ±$15.79 (94.9%) in Dyne Therapeutics stock by expiration.

The most open interest sits at the $17.00 call (445 contracts) and the $17.00 put (440 contracts).

Summary generated from market data by MetaCap's automated system. Methodology

DYN options chain · December 17, 2027

DYN calls and puts by strike price. Shaded cells are in the money.
Calls							Puts
OI	Vol	IV	Last	Bid	Ask	Strike	Bid	Ask	Last	IV	Vol	OI
0	—	—	15.40	19.00	24.00	3.00	—	—	—	—	—	—
1	—	—	23.37	17.50	22.50	5.00	0.00	3.60	0.95	156.5%	1	1
50	69	103.7%	10.20	8.10	12.90	8.00	—	—	—	—	—	—
26	40	95.3%	9.05	6.80	11.50	10.00	—	—	—	—	—	—
150	70	95.4%	8.00	7.10	8.60	13.00	1.00	6.00	3.00	82.5%	1	2
139	76	85.1%	7.42	5.00	8.00	15.00	2.10	7.00	4.97	80.1%	4	24
DYN $16.64
445	1	99.5%	5.71	5.70	7.80	17.00	3.00	8.00	6.39	74.8%	50	440
70	5	96.3%	4.30	4.20	7.30	20.00	7.10	8.50	8.00	77.5%	74	122
106	1	86.5%	3.90	2.20	7.00	22.00	8.50	10.10	9.32	77.3%	62	215
25	25	86.5%	11.00	1.50	6.50	25.00	11.20	12.40	11.50	78.8%	40	263
5	1	165.7%	12.50	6.50	11.50	27.00	10.50	15.40	13.65	71.7%	54	241
1	1	84.3%	3.00	0.60	5.50	30.00	13.00	18.00	15.80	71.3%	44	96
13	10	80.8%	7.00	0.10	5.00	32.00	11.50	16.20	13.20	53.2%	—	5
138	6	85.6%	5.50	0.10	5.00	35.00	13.50	18.50	15.60	38.1%	10	26

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 December 17, 2027 expiration, the DYN put/call ratio based on open interest is 1.23 (1,435 puts vs 1,169 calls), and 1.11 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 December 17, 2027 is about 87.1%, 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.