Compass Therapeutics (CMPX) Options Chain

NASDAQ: CMPXHealth CareBiotechnology: Biological Products (No Diagnostic Substances)USD

0.993+0.0096 (+0.98%)

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

Expiration date

Expiration: Feb 19, 2027
Days to expiration: 132
Share price: $0.993
Put/call ratio (OI): 0.03
Put/call ratio (volume): 0.20
ATM implied volatility: 174.6%
Expected move: ±$1.04
Open interest (C / P): 592 / 15

CMPX options summary

The CMPX options chain for the February 19, 2027 expiration lists 5 call and 5 put contracts, with 132 days until expiration. Open interest stands at 592 calls and 15 puts, a put/call ratio of 0.03, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $1.00 strike is 174.6%, which implies the market expects a move of about ±$1.04 (105.0%) in Compass Therapeutics stock by expiration.

The most open interest sits at the $2.00 call (512 contracts) and the $0.50 put (10 contracts).

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

CMPX options chain · February 19, 2027

CMPX 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
2	1	385.9%	0.70	0.20	1.45	0.50	0.00	0.70	0.05	409.4%	—	10
CMPX $0.993
55	2	152.3%	0.30	0.00	0.70	1.00	0.00	0.90	0.28	196.9%	—	0
—	—	—	—	—	—	1.50	0.30	1.15	0.32	148.4%	—	1
512	3	192.2%	0.25	0.05	0.45	2.00	0.75	1.60	0.46	157.0%	3	3
16	4	271.1%	0.65	0.00	0.70	3.00	0.70	1.45	1.25	—	—	1
7	5	294.5%	0.35	0.00	0.70	4.00	—	—	—	—	—	—

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 CMPX put/call ratio?

For the February 19, 2027 expiration, the CMPX put/call ratio based on open interest is 0.03 (15 puts vs 592 calls), and 0.20 based on today's volume. A ratio above 1 means more puts than calls.

What is CMPX's implied volatility?

At-the-money implied volatility for CMPX options expiring February 19, 2027 is about 174.6%, an annualized estimate of how much the market expects Compass Therapeutics stock to move.

How many CMPX option expiration dates are there?

CMPX has 8 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.