Cardiol Therapeutics (CRDL) Options Chain
NASDAQ: CRDLHealth CareBiotechnology: Biological Products (No Diagnostic Substances)USD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Dec 18, 2026
- Days to expiration
- 68
- Share price
- $1.23
- Put/call ratio (OI)
- 0.01
- Put/call ratio (volume)
- 0.07
- ATM implied volatility
- 185.2%
- Expected move
- ±$0.983
- Open interest (C / P)
- 873 / 11
CRDL options summary
The CRDL options chain for the December 18, 2026 expiration lists 3 call and 2 put contracts, with 68 days until expiration. Open interest stands at 873 calls and 11 puts, a put/call ratio of 0.01, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $2.50 strike is 185.2%, which implies the market expects a move of about ±$0.983 (79.9%) in Cardiol Therapeutics stock by expiration.
The most open interest sits at the $2.50 call (615 contracts) and the $2.50 put (8 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
CRDL options chain · December 18, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 0.05 | 0.00 | 0.30 | 2.50 | 0.40 | 1.40 | 1.50 | |||||
| 0.10 | 0.00 | 0.50 | 5.00 | 1.50 | 6.40 | 3.71 | |||||
| 0.15 | 0.00 | 1.00 | 7.50 | — | — | — | |||||
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 CRDL put/call ratio?
For the December 18, 2026 expiration, the CRDL put/call ratio based on open interest is 0.01 (11 puts vs 873 calls), and 0.07 based on today's volume. A ratio above 1 means more puts than calls.
What is CRDL's implied volatility?
At-the-money implied volatility for CRDL options expiring December 18, 2026 is about 185.2%, an annualized estimate of how much the market expects Cardiol Therapeutics stock to move.
How many CRDL option expiration dates are there?
CRDL has 4 listed expiration dates, from Oct 16, 2026 to Mar 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.