Caribou Biosciences (CRBU) Options Chain
NASDAQ: CRBUHealth CareBiotechnology: Biological Products (No Diagnostic Substances)USD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Apr 16, 2027
- Days to expiration
- 187
- Share price
- $0.4602
- Put/call ratio (OI)
- 0.03
- Put/call ratio (volume)
- 0.03
- ATM implied volatility
- 168.8%
- Expected move
- ±$0.5559
- Open interest (C / P)
- 1.23K / 33
CRBU options summary
The CRBU options chain for the April 16, 2027 expiration lists 6 call and 3 put contracts, with 187 days until expiration. Open interest stands at 1,225 calls and 33 puts, a put/call ratio of 0.03, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $0.50 strike is 168.8%, which implies the market expects a move of about ±$0.5559 (120.8%) in Caribou Biosciences stock by expiration.
The most open interest sits at the $1.00 call (673 contracts) and the $1.50 put (29 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
CRBU options chain · April 16, 2027
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 0.15 | 0.15 | 0.25 | 0.50 | — | — | — | |||||
| 0.10 | 0.00 | 0.15 | 1.00 | — | — | — | |||||
| 0.05 | 0.00 | 1.00 | 1.50 | 0.25 | 1.20 | 1.05 | |||||
| 0.05 | 0.00 | 0.05 | 2.00 | 1.05 | 2.05 | 1.60 | |||||
| 0.15 | 0.00 | 1.00 | 2.50 | 1.55 | 2.55 | 1.00 | |||||
| 0.05 | 0.00 | 1.00 | 5.00 | — | — | — | |||||
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 CRBU put/call ratio?
For the April 16, 2027 expiration, the CRBU put/call ratio based on open interest is 0.03 (33 puts vs 1,225 calls), and 0.03 based on today's volume. A ratio above 1 means more puts than calls.
What is CRBU's implied volatility?
At-the-money implied volatility for CRBU options expiring April 16, 2027 is about 168.8%, an annualized estimate of how much the market expects Caribou Biosciences stock to move.
How many CRBU option expiration dates are there?
CRBU has 4 listed expiration dates, from Oct 16, 2026 to Apr 16, 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.