Donaldson (DCI) Options Chain
NYSE: DCIIndustrialsPollution Control EquipmentUSD
At close: Oct 8, 4:00 PM ET · Delayed 15 min
After hours: 87.16 +0.02%
Expiration date
- Expiration
- Oct 16, 2026
- Days to expiration
- 8
- Share price
- $87.16
- Put/call ratio (OI)
- 0.24
- Put/call ratio (volume)
- 0.31
- Expected move
- ±$7.19
- Open interest (C / P)
- 610 / 149
DCI options summary
The DCI options chain for the October 16, 2026 expiration lists 5 call and 3 put contracts, with 8 days until expiration. Open interest stands at 610 calls and 149 puts, a put/call ratio of 0.24, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $85.00 strike is 55.7%, which implies the market expects a move of about ±$7.19 (8.2%) in Donaldson stock by expiration.
The most open interest sits at the $90.00 call (543 contracts) and the $90.00 put (124 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
DCI options chain · October 16, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| — | — | — | 80.00 | 0.00 | 1.15 | 0.05 | |||||
| 6.30 | 1.80 | 4.30 | 85.00 | 0.00 | 1.95 | 1.15 | |||||
| 1.58 | 0.00 | 1.75 | 90.00 | 2.30 | 4.40 | 4.53 | |||||
| 0.18 | 0.00 | 0.75 | 95.00 | — | — | — | |||||
| 0.29 | 0.00 | 0.75 | 100.00 | — | — | — | |||||
| 0.10 | 0.00 | 1.00 | 105.00 | — | — | — | |||||
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 DCI put/call ratio?
For the October 16, 2026 expiration, the DCI put/call ratio based on open interest is 0.24 (149 puts vs 610 calls), and 0.31 based on today's volume. A ratio above 1 means more puts than calls.
What is DCI's implied volatility?
At-the-money implied volatility for DCI options expiring October 16, 2026 is about 55.7%, an annualized estimate of how much the market expects Donaldson stock to move.
How many DCI option expiration dates are there?
DCI has 4 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.