Innospec (IOSP) Options Chain
NASDAQ: IOSPIndustrialsMajor ChemicalsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Dec 18, 2026
- Days to expiration
- 68
- Share price
- $95.65
- Put/call ratio (OI)
- 0.50
- Put/call ratio (volume)
- 0.13
- Expected move
- ±$15.42
- Open interest (C / P)
- 4 / 2
IOSP options summary
The IOSP options chain for the December 18, 2026 expiration lists 5 call and 4 put contracts, with 68 days until expiration. Open interest stands at 4 calls and 2 puts, a put/call ratio of 0.50, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $95.00 strike is 37.4%, which implies the market expects a move of about ±$15.42 (16.1%) in Innospec stock by expiration.
The most open interest sits at the $85.00 call (3 contracts) and the $65.00 put (1 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
IOSP options chain · December 18, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 32.61 | 0.00 | 0.00 | 50.00 | — | — | — | |||||
| — | — | — | 60.00 | 0.00 | 0.00 | 1.40 | |||||
| — | — | — | 65.00 | 0.00 | 4.90 | 0.30 | |||||
| 7.04 | 8.60 | 13.40 | 85.00 | 0.00 | 4.90 | 0.50 | |||||
| 8.00 | 0.00 | 0.00 | 90.00 | 0.00 | 0.00 | 12.10 | |||||
| 5.30 | 2.15 | 6.50 | 95.00 | — | — | — | |||||
| 0.80 | 0.00 | 0.00 | 110.00 | — | — | — | |||||
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 IOSP put/call ratio?
For the December 18, 2026 expiration, the IOSP put/call ratio based on open interest is 0.50 (2 puts vs 4 calls), and 0.13 based on today's volume. A ratio above 1 means more puts than calls.
What is IOSP's implied volatility?
At-the-money implied volatility for IOSP options expiring December 18, 2026 is about 37.4%, an annualized estimate of how much the market expects Innospec stock to move.
How many IOSP option expiration dates are there?
IOSP 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.