COMPASS Pathways Plc American Depository Shares (CMPS) Options Chain

NASDAQ: CMPSHealth CareBiotechnology: Pharmaceutical PreparationsUSD

12.05+0.58 (+5.06%)

Market open · Delayed 15 min · as of Oct 9, 2:31 PM ET

Expiration date

Expiration: Oct 16, 2026
Days to expiration: 7
Share price: $12.05
Put/call ratio (OI): 0.28
Put/call ratio (volume): 0.62
ATM implied volatility: 70.3%
Expected move: ±$1.17
Open interest (C / P): 9.19K / 2.62K

CMPS options summary

The CMPS options chain for the October 16, 2026 expiration lists 16 call and 11 put contracts, with 7 days until expiration. Open interest stands at 9,189 calls and 2,615 puts, a put/call ratio of 0.28, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $12.00 strike is 70.3%, which implies the market expects a move of about ±$1.17 (9.7%) in COMPASS Pathways Plc American Depository Shares stock by expiration.

The most open interest sits at the $17.00 call (4.79K contracts) and the $13.00 put (1.17K contracts).

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

CMPS options chain · October 16, 2026

CMPS 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
3	3	50.0%	9.10	5.00	7.10	6.00	—	—	—	—	—	—
7	17	410.2%	7.25	4.00	5.60	7.00	—	—	—	—	—	—
—	—	—	—	—	—	8.00	0.00	1.20	0.04	347.7%	2	2
50	6	167.2%	2.40	2.00	3.20	9.00	0.00	0.05	0.12	110.9%	—	2
104	6	25.0%	1.55	1.30	2.05	10.00	0.00	0.20	0.16	106.3%	3	29
36	5	75.4%	0.66	0.65	1.20	11.00	0.10	0.20	0.11	75.4%	1	60
214	19	56.3%	0.44	0.35	0.50	12.00	0.40	0.75	0.45	84.4%	91	209
CMPS $12.05
324	38	60.5%	0.15	0.10	0.15	13.00	1.10	1.45	1.53	94.7%	2	1,168
548	12	71.9%	0.07	0.00	0.10	14.00	1.95	2.30	2.40	103.9%	4	774
1,952	13	95.3%	0.06	0.00	0.10	15.00	2.80	3.80	3.55	168.8%	5	368
560	1	116.4%	0.09	0.00	0.10	16.00	3.90	4.30	1.55	150.8%	2	0
4,787	1	135.2%	0.12	0.00	0.10	17.00	4.90	5.40	3.50	186.7%	1	0
359	11	152.3%	0.05	0.00	0.10	18.00	—	—	—	—	—	—
64	1	150.0%	0.03	0.00	0.05	19.00	—	—	—	—	—	—
106	1	164.1%	0.04	0.00	0.05	20.00	7.70	9.10	5.10	304.3%	—	3
2	1	223.4%	0.05	0.00	0.20	21.00	—	—	—	—	—	—
73	44	189.1%	0.07	0.00	0.05	22.00	—	—	—	—	—	—

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 CMPS put/call ratio?

For the October 16, 2026 expiration, the CMPS put/call ratio based on open interest is 0.28 (2,615 puts vs 9,189 calls), and 0.62 based on today's volume. A ratio above 1 means more puts than calls.

What is CMPS's implied volatility?

At-the-money implied volatility for CMPS options expiring October 16, 2026 is about 70.3%, an annualized estimate of how much the market expects COMPASS Pathways Plc American Depository Shares stock to move.

How many CMPS option expiration dates are there?

CMPS has 7 listed expiration dates, from Oct 16, 2026 to Jan 19, 2029.

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.