Champions Oncology (CSBR) Options Chain
NASDAQ: CSBRHealth CareBiotechnology: Biological Products (No Diagnostic Substances)USD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Nov 20, 2026
- Days to expiration
- 40
- Share price
- $4.84
- Put/call ratio (OI)
- 20.00
- Put/call ratio (volume)
- 4.00
- ATM implied volatility
- 400.8%
- Expected move
- ±$6.42
- Open interest (C / P)
- 2 / 40
CSBR options summary
The CSBR options chain for the November 20, 2026 expiration lists 2 call and 4 put contracts, with 40 days until expiration. Open interest stands at 2 calls and 40 puts, a put/call ratio of 20.00, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $5.00 strike is 400.8%, which implies the market expects a move of about ±$6.42 (132.7%) in Champions Oncology stock by expiration.
The most open interest sits at the $5.00 call (2 contracts) and the $2.50 put (34 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
CSBR options chain · November 20, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| — | — | — | 2.50 | 0.00 | 0.05 | 0.05 | |||||
| 3.40 | 0.00 | 4.90 | 5.00 | 0.00 | 4.90 | 1.30 | |||||
| 1.40 | 0.00 | 0.00 | 7.50 | 0.80 | 4.90 | 3.50 | |||||
| — | — | — | 10.00 | 0.00 | 0.00 | 4.70 | |||||
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 CSBR put/call ratio?
For the November 20, 2026 expiration, the CSBR put/call ratio based on open interest is 20.00 (40 puts vs 2 calls), and 4.00 based on today's volume. A ratio above 1 means more puts than calls.
What is CSBR's implied volatility?
At-the-money implied volatility for CSBR options expiring November 20, 2026 is about 400.8%, an annualized estimate of how much the market expects Champions Oncology stock to move.
How many CSBR option expiration dates are there?
CSBR has 3 listed expiration dates, from Oct 16, 2026 to Feb 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.