Codexis (CDXS) Options Chain
NASDAQ: CDXSIndustrialsMajor ChemicalsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Dec 18, 2026
- Days to expiration
- 68
- Share price
- $1.41
- Put/call ratio (OI)
- 0.02
- Put/call ratio (volume)
- 2.05
- ATM implied volatility
- 209.8%
- Expected move
- ±$1.28
- Open interest (C / P)
- 857 / 21
CDXS options summary
The CDXS options chain for the December 18, 2026 expiration lists 6 call and 5 put contracts, with 68 days until expiration. Open interest stands at 857 calls and 21 puts, a put/call ratio of 0.02, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $1.50 strike is 209.8%, which implies the market expects a move of about ±$1.28 (90.5%) in Codexis stock by expiration.
The most open interest sits at the $5.00 call (693 contracts) and the $2.50 put (10 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
CDXS options chain · December 18, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 1.30 | 0.00 | 0.00 | 0.50 | 0.00 | 0.00 | 0.03 | |||||
| 0.82 | 0.00 | 0.00 | 1.00 | 0.00 | 0.75 | 0.10 | |||||
| 0.35 | 0.05 | 1.00 | 1.50 | 0.00 | 1.00 | 0.30 | |||||
| 0.29 | 0.00 | 0.75 | 2.00 | 0.40 | 1.15 | 0.62 | |||||
| 0.05 | 0.00 | 0.10 | 2.50 | 0.60 | 1.45 | 1.00 | |||||
| 0.07 | 0.00 | 0.45 | 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 CDXS put/call ratio?
For the December 18, 2026 expiration, the CDXS put/call ratio based on open interest is 0.02 (21 puts vs 857 calls), and 2.05 based on today's volume. A ratio above 1 means more puts than calls.
What is CDXS's implied volatility?
At-the-money implied volatility for CDXS options expiring December 18, 2026 is about 209.8%, an annualized estimate of how much the market expects Codexis stock to move.
How many CDXS option expiration dates are there?
CDXS has 3 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.