COMPASS Pathways Plc American Depository Shares (CMPS) Options Chain

NASDAQ: CMPSHealth CareBiotechnology: Pharmaceutical PreparationsUSD

12.00+0.53 (+4.62%)

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

Expiration date

Expiration: Jan 21, 2028
Days to expiration: 468
Share price: $12.00
Put/call ratio (OI): 0.46
Put/call ratio (volume): 0.21
ATM implied volatility: 85.9%
Expected move: ±$11.68
Open interest (C / P): 16.70K / 7.64K

CMPS options summary

The CMPS options chain for the January 21, 2028 expiration lists 12 call and 8 put contracts, with 468 days until expiration. Open interest stands at 16,697 calls and 7,637 puts, a put/call ratio of 0.46, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $12.00 strike is 85.9%, which implies the market expects a move of about ±$11.68 (97.3%) in COMPASS Pathways Plc American Depository Shares stock by expiration.

The most open interest sits at the $12.00 call (3.47K contracts) and the $10.00 put (5.26K contracts).

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

CMPS options chain · January 21, 2028

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
155	6	102.2%	11.72	8.20	10.50	3.00	0.00	0.25	0.82	78.1%	1	255
470	5	90.3%	9.00	5.70	9.90	5.00	0.00	5.00	0.86	168.3%	20	99
2,966	2	100.9%	6.64	6.20	7.80	7.00	0.95	1.60	1.28	77.9%	11	316
1,443	2	89.9%	4.90	5.00	5.70	10.00	2.50	2.95	2.57	75.6%	2	5,257
CMPS $12.00
3,469	21	97.8%	4.90	4.00	6.10	12.00	3.60	4.20	3.90	74.0%	23	811
1,995	22	103.1%	3.70	3.40	5.70	15.00	4.80	6.80	5.94	69.7%	4	693
211	1	95.6%	3.60	2.00	5.50	17.00	5.10	10.00	8.05	73.3%	4	205
2,877	31	85.9%	2.50	2.30	3.10	20.00	—	—	—	—	—	—
885	202	84.7%	2.50	1.90	2.80	22.00	—	—	—	—	—	—
2,045	16	88.2%	2.00	1.90	2.45	25.00	12.20	15.30	14.09	58.6%	1	1
170	2	81.4%	1.70	1.05	2.20	27.00	—	—	—	—	—	—
11	1	75.2%	1.64	0.25	1.95	30.00	—	—	—	—	—	—

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 January 21, 2028 expiration, the CMPS put/call ratio based on open interest is 0.46 (7,637 puts vs 16,697 calls), and 0.21 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 January 21, 2028 is about 85.9%, 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.