Cytosorbents (CTSO) Options Chain
NASDAQ: CTSOHealth CareMedical/Dental InstrumentsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Feb 19, 2027
- Days to expiration
- 132
- Share price
- $3.79
- Put/call ratio (OI)
- 0.00
- Put/call ratio (volume)
- 0.00
- ATM implied volatility
- 604.7%
- Expected move
- ±$13.78
- Open interest (C / P)
- 4 / 0
CTSO options summary
The CTSO options chain for the February 19, 2027 expiration lists 1 call and 2 put contracts, with 132 days until expiration. Open interest stands at 4 calls and 0 puts, a put/call ratio of 0.00, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $5.00 strike is 604.7%, which implies the market expects a move of about ±$13.78 (363.6%) in Cytosorbents stock by expiration.
The most open interest sits at the $2.50 call (4 contracts) and the $2.50 put (0 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
CTSO options chain · February 19, 2027
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 0.05 | 0.00 | 4.80 | 2.50 | 1.60 | 2.55 | 0.05 | |||||
| — | — | — | 5.00 | 4.10 | 5.30 | 2.50 | |||||
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 CTSO put/call ratio?
For the February 19, 2027 expiration, the CTSO put/call ratio based on open interest is 0.00 (0 puts vs 4 calls), and 0.00 based on today's volume. A ratio above 1 means more puts than calls.
What is CTSO's implied volatility?
At-the-money implied volatility for CTSO options expiring February 19, 2027 is about 604.7%, an annualized estimate of how much the market expects Cytosorbents stock to move.
How many CTSO option expiration dates are there?
CTSO 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.