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: May 21, 2027
Days to expiration: 224
Share price: $12.00
Put/call ratio (OI): 0.01
Put/call ratio (volume): 0.01
ATM implied volatility: 75.8%
Expected move: ±$7.12
Open interest (C / P): 868 / 13

CMPS options summary

The CMPS options chain for the May 21, 2027 expiration lists 13 call and 3 put contracts, with 224 days until expiration. Open interest stands at 868 calls and 13 puts, a put/call ratio of 0.01, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $12.00 strike is 75.8%, which implies the market expects a move of about ±$7.12 (59.4%) in COMPASS Pathways Plc American Depository Shares stock by expiration.

The most open interest sits at the $17.00 call (185 contracts) and the $15.00 put (10 contracts).

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

CMPS options chain · May 21, 2027

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
1	—	87.6%	7.50	4.80	6.70	7.00	—	—	—	—	—	—
131	1	94.0%	3.75	3.70	4.80	10.00	—	—	—	—	—	—
12	1	84.3%	3.55	2.80	4.20	11.00	—	—	—	—	—	—
CMPS $12.00
—	—	—	3.24	—	—	12.00	1.90	3.70	2.50	75.8%	2	2
101	4	81.3%	2.50	2.00	3.30	13.00	—	—	—	—	—	—
106	50	78.9%	3.50	1.60	2.90	14.00	—	—	—	—	—	—
107	128	84.8%	2.30	1.80	2.60	15.00	3.10	7.00	3.80	80.8%	—	10
173	1	79.7%	1.45	1.20	2.35	16.00	4.60	6.70	4.30	76.4%	—	1
185	100	72.9%	1.77	0.50	2.15	17.00	—	—	—	—	—	—
8	2	80.7%	2.25	0.90	1.95	18.00	—	—	—	—	—	—
2	2	70.5%	1.00	0.05	1.80	19.00	—	—	—	—	—	—
30	10	72.8%	1.49	0.05	1.70	20.00	—	—	—	—	—	—
12	20	85.6%	1.05	0.75	1.35	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 May 21, 2027 expiration, the CMPS put/call ratio based on open interest is 0.01 (13 puts vs 868 calls), and 0.01 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 May 21, 2027 is about 75.8%, 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.