Compass Therapeutics (CMPX) Options Chain
NASDAQ: CMPXHealth CareBiotechnology: Biological Products (No Diagnostic Substances)USD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Jan 15, 2027
- Days to expiration
- 97
- Share price
- $0.993
- Put/call ratio (OI)
- 5.04
- Put/call ratio (volume)
- 0.27
- ATM implied volatility
- 155.9%
- Expected move
- ±$0.7979
- Open interest (C / P)
- 8.15K / 41.06K
CMPX options summary
The CMPX options chain for the January 15, 2027 expiration lists 13 call and 6 put contracts, with 97 days until expiration. Open interest stands at 8,150 calls and 41,061 puts, a put/call ratio of 5.04, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $1.00 strike is 155.9%, which implies the market expects a move of about ±$0.7979 (80.3%) in Compass Therapeutics stock by expiration.
The most open interest sits at the $2.00 call (3.31K contracts) and the $1.00 put (40.01K contracts).
Summary generated from market data by MetaCap's automated system. Methodology
CMPX options chain · January 15, 2027
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 0.72 | 0.20 | 1.05 | 0.50 | 0.00 | 0.05 | 0.05 | |||||
| 0.30 | 0.00 | 0.55 | 1.00 | 0.15 | 0.55 | 0.30 | |||||
| 0.15 | 0.00 | 0.35 | 2.00 | 0.70 | 1.35 | 1.11 | |||||
| 0.13 | 0.00 | 0.70 | 3.00 | 1.70 | 2.35 | 1.30 | |||||
| 0.37 | 0.00 | 0.70 | 4.00 | — | — | — | |||||
| 0.05 | 0.00 | 0.55 | 5.00 | 1.45 | 5.10 | 2.05 | |||||
| 0.25 | 0.00 | 0.70 | 6.00 | 3.50 | 4.50 | 2.72 | |||||
| 0.19 | 0.00 | 0.70 | 7.00 | — | — | — | |||||
| 0.05 | 0.00 | 0.70 | 8.00 | — | — | — | |||||
| 1.25 | 0.00 | 0.95 | 9.00 | — | — | — | |||||
| 1.20 | 0.00 | 0.70 | 11.00 | — | — | — | |||||
| 0.05 | 0.00 | 0.00 | 12.00 | — | — | — | |||||
| 1.05 | 0.00 | 0.70 | 13.00 | — | — | — | |||||
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 January 15, 2027 expiration, the CMPX put/call ratio based on open interest is 5.04 (41,061 puts vs 8,150 calls), and 0.27 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 January 15, 2027 is about 155.9%, 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.