Arcus Biosciences (RCUS) Options Chain
NYSE: RCUSHealth CareBiotechnology: Pharmaceutical PreparationsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Oct 16, 2026
- Days to expiration
- 7
- Share price
- $24.41
- Put/call ratio (OI)
- 0.12
- Put/call ratio (volume)
- 0.22
- ATM implied volatility
- 142.0%
- Expected move
- ±$4.80
- Open interest (C / P)
- 9.53K / 1.12K
RCUS options summary
The RCUS options chain for the October 16, 2026 expiration lists 8 call and 8 put contracts, with 7 days until expiration. Open interest stands at 9,525 calls and 1,117 puts, a put/call ratio of 0.12, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $25.00 strike is 142.0%, which implies the market expects a move of about ±$4.80 (19.7%) in Arcus Biosciences stock by expiration.
The most open interest sits at the $20.00 call (5.33K contracts) and the $20.00 put (613 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
RCUS options chain · October 16, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| — | — | — | 5.00 | 0.00 | 5.00 | 0.30 | |||||
| — | — | — | 10.00 | 0.00 | 0.00 | 0.20 | |||||
| 10.23 | 7.00 | 11.40 | 15.00 | 0.00 | 0.05 | 0.05 | |||||
| — | — | — | 17.50 | 0.00 | 0.00 | 1.85 | |||||
| 4.80 | 2.00 | 6.50 | 20.00 | 0.00 | 5.00 | 0.23 | |||||
| 6.30 | 6.50 | 11.00 | 22.50 | 0.05 | 1.75 | 0.66 | |||||
| 2.05 | 0.00 | 2.50 | 25.00 | 0.30 | 5.00 | 2.65 | |||||
| 0.05 | 0.00 | 2.00 | 30.00 | 4.00 | 7.00 | 2.85 | |||||
| 0.70 | 0.00 | 5.00 | 35.00 | — | — | — | |||||
| 0.55 | 0.00 | 5.00 | 40.00 | — | — | — | |||||
| 0.05 | 0.00 | 5.00 | 45.00 | — | — | — | |||||
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 RCUS put/call ratio?
For the October 16, 2026 expiration, the RCUS put/call ratio based on open interest is 0.12 (1,117 puts vs 9,525 calls), and 0.22 based on today's volume. A ratio above 1 means more puts than calls.
What is RCUS's implied volatility?
At-the-money implied volatility for RCUS options expiring October 16, 2026 is about 142.0%, an annualized estimate of how much the market expects Arcus Biosciences stock to move.
How many RCUS option expiration dates are there?
RCUS has 7 listed expiration dates, from Oct 16, 2026 to Dec 17, 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.