Cerus (CERS) Options Chain
NASDAQ: CERSHealth CareMedical/Dental InstrumentsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- May 21, 2027
- Days to expiration
- 223
- Share price
- $2.30
- Put/call ratio (OI)
- 45.00
- Expected move
- ±$1.79
- Open interest (C / P)
- 1 / 45
CERS options summary
The CERS options chain for the May 21, 2027 expiration lists 1 call and 2 put contracts, with 223 days until expiration. Open interest stands at 1 calls and 45 puts, a put/call ratio of 45.00, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $2.00 strike is 99.6%, which implies the market expects a move of about ±$1.79 (77.9%) in Cerus stock by expiration.
The most open interest sits at the $2.00 call (1 contracts) and the $3.00 put (43 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
CERS options chain · May 21, 2027
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 0.90 | 0.45 | 1.20 | 2.00 | 0.00 | 1.00 | 0.35 | |||||
| — | — | — | 3.00 | 0.45 | 1.40 | 1.20 | |||||
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 CERS put/call ratio?
For the May 21, 2027 expiration, the CERS put/call ratio based on open interest is 45.00 (45 puts vs 1 calls). A ratio above 1 means more puts than calls.
What is CERS's implied volatility?
At-the-money implied volatility for CERS options expiring May 21, 2027 is about 99.6%, an annualized estimate of how much the market expects Cerus stock to move.
How many CERS option expiration dates are there?
CERS has 5 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.