Coherus Oncology (CHRS) Options Chain
NASDAQ: CHRSHealth 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
- $1.07
- Put/call ratio (OI)
- 0.19
- Put/call ratio (volume)
- 0.13
- ATM implied volatility
- 213.3%
- Expected move
- ±$0.7555
- Open interest (C / P)
- 8.52K / 1.60K
CHRS options summary
The CHRS options chain for the November 20, 2026 expiration lists 7 call and 4 put contracts, with 40 days until expiration. Open interest stands at 8,518 calls and 1,605 puts, a put/call ratio of 0.19, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $1.00 strike is 213.3%, which implies the market expects a move of about ±$0.7555 (70.6%) in Coherus Oncology stock by expiration.
The most open interest sits at the $2.00 call (3.79K contracts) and the $2.00 put (1.16K contracts).
Summary generated from market data by MetaCap's automated system. Methodology
CHRS options chain · November 20, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 0.70 | 0.00 | 0.95 | 0.50 | 0.00 | 0.00 | 0.22 | |||||
| 0.25 | 0.15 | 0.75 | 1.00 | 0.05 | 0.20 | 0.18 | |||||
| 0.10 | 0.10 | 0.15 | 1.50 | 0.15 | 0.75 | 0.55 | |||||
| 0.05 | 0.05 | 0.15 | 2.00 | 0.60 | 1.60 | 0.90 | |||||
| 0.05 | 0.00 | 0.10 | 3.00 | — | — | — | |||||
| 0.05 | 0.00 | 0.05 | 4.00 | — | — | — | |||||
| 0.05 | 0.00 | 0.20 | 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 CHRS put/call ratio?
For the November 20, 2026 expiration, the CHRS put/call ratio based on open interest is 0.19 (1,605 puts vs 8,518 calls), and 0.13 based on today's volume. A ratio above 1 means more puts than calls.
What is CHRS's implied volatility?
At-the-money implied volatility for CHRS options expiring November 20, 2026 is about 213.3%, an annualized estimate of how much the market expects Coherus Oncology stock to move.
How many CHRS option expiration dates are there?
CHRS has 4 listed expiration dates, from Oct 16, 2026 to May 21, 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.