CytomX Therapeutics (CTMX) Options Chain
NASDAQ: CTMXHealth CareBiotechnology: Pharmaceutical PreparationsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Jan 21, 2028
- Days to expiration
- 467
- Share price
- $2.57
- Put/call ratio (OI)
- 0.03
- Put/call ratio (volume)
- 0.27
- ATM implied volatility
- 104.8%
- Expected move
- ±$3.05
- Open interest (C / P)
- 4.16K / 139
CTMX options summary
The CTMX options chain for the January 21, 2028 expiration lists 11 call and 8 put contracts, with 467 days until expiration. Open interest stands at 4,161 calls and 139 puts, a put/call ratio of 0.03, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $3.00 strike is 104.8%, which implies the market expects a move of about ±$3.05 (118.6%) in CytomX Therapeutics stock by expiration.
The most open interest sits at the $5.00 call (1.74K contracts) and the $3.00 put (39 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
CTMX options chain · January 21, 2028
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 3.00 | 0.00 | 0.00 | 0.50 | 0.00 | 1.00 | 0.16 | |||||
| 2.20 | 1.55 | 2.55 | 1.00 | 0.00 | 1.00 | 0.70 | |||||
| 2.00 | 1.35 | 2.35 | 1.50 | 0.15 | 1.15 | 0.55 | |||||
| 1.40 | 1.05 | 1.65 | 2.00 | 0.45 | 1.45 | 0.75 | |||||
| 1.08 | 1.00 | 1.40 | 3.00 | 0.85 | 1.75 | 1.21 | |||||
| 0.85 | 0.55 | 1.10 | 4.00 | 0.00 | 0.00 | 2.00 | |||||
| 0.65 | 0.35 | 1.30 | 5.00 | 2.60 | 3.60 | 3.10 | |||||
| 0.57 | 0.00 | 1.00 | 7.00 | — | — | — | |||||
| 0.25 | 0.20 | 1.20 | 10.00 | 5.70 | 6.70 | 5.69 | |||||
| 1.30 | 0.35 | 1.35 | 12.00 | — | — | — | |||||
| 0.55 | 0.00 | 0.00 | 15.00 | — | — | — | |||||
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 CTMX put/call ratio?
For the January 21, 2028 expiration, the CTMX put/call ratio based on open interest is 0.03 (139 puts vs 4,161 calls), and 0.27 based on today's volume. A ratio above 1 means more puts than calls.
What is CTMX's implied volatility?
At-the-money implied volatility for CTMX options expiring January 21, 2028 is about 104.8%, an annualized estimate of how much the market expects CytomX Therapeutics stock to move.
How many CTMX option expiration dates are there?
CTMX has 6 listed expiration dates, from Oct 16, 2026 to Jan 21, 2028.
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.