Corbus Pharmaceuticals (CRBP) Options Chain
NASDAQ: CRBPHealth CareBiotechnology: Pharmaceutical PreparationsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Nov 20, 2026
- Days to expiration
- 40
- Share price
- $5.38
- Put/call ratio (OI)
- 2.67
- Put/call ratio (volume)
- 0.29
- ATM implied volatility
- 144.1%
- Expected move
- ±$2.57
- Open interest (C / P)
- 36 / 96
CRBP options summary
The CRBP options chain for the November 20, 2026 expiration lists 4 call and 3 put contracts, with 40 days until expiration. Open interest stands at 36 calls and 96 puts, a put/call ratio of 2.67, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $5.00 strike is 144.1%, which implies the market expects a move of about ±$2.57 (47.7%) in Corbus Pharmaceuticals stock by expiration.
The most open interest sits at the $5.00 call (13 contracts) and the $5.00 put (78 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
CRBP options chain · November 20, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 2.50 | 0.00 | 3.00 | 5.00 | 0.00 | 1.00 | 0.25 | |||||
| 0.40 | 0.00 | 3.00 | 7.50 | 0.85 | 4.80 | 1.80 | |||||
| 0.15 | 0.00 | 0.50 | 10.00 | 2.50 | 5.60 | 3.06 | |||||
| 0.13 | 0.00 | 2.00 | 12.50 | — | — | — | |||||
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 CRBP put/call ratio?
For the November 20, 2026 expiration, the CRBP put/call ratio based on open interest is 2.67 (96 puts vs 36 calls), and 0.29 based on today's volume. A ratio above 1 means more puts than calls.
What is CRBP's implied volatility?
At-the-money implied volatility for CRBP options expiring November 20, 2026 is about 144.1%, an annualized estimate of how much the market expects Corbus Pharmaceuticals stock to move.
How many CRBP option expiration dates are there?
CRBP has 4 listed expiration dates, from Oct 16, 2026 to Mar 19, 2027.
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.