DCI Open Interest
Donaldson Company Inc (DCI) had 1.45K open option contracts as of Nov 4, 2026: 781 calls and 670 puts. Open interest fell 8.5% over the past four weeks. The put/call open interest ratio is 0.86, so calls outnumber puts.
Open Interest by Strike
Showing results for DCI, 2026-11-20(m), calls & puts
Open Interest Stats
Showing results for DCI, 2026-11-20(m), calls & puts
| Call Open Interest Total | |
|---|---|
| Put Open Interest Total | |
| Open Interest Total | |
| Put-Call Open Interest Ratio |
Highest Open Interest Options
Showing results for DCI, 2026-11-20(m), calls & puts
Open Interest Total by Expiry
Showing results for DCI, 2026-11-20(m), calls & puts. View all expiries
Open Interest History
Showing daily totals for DCI, all expirations, calls & puts. View full history
DCI Open Interest FAQ
What is open interest?
Open interest is the number of option contracts that are open and not yet closed, exercised, or expired. The Options Clearing Corporation calculates it once a day from the previous day's trades, and it is published before the market opens.
How much open interest does DCI have?
Donaldson had 1.45K open option contracts as of Nov 4, 2026. Over the past 30 days, open interest averaged 1.4K contracts.
Is DCI open interest rising or falling?
Open interest fell 8.5% over the past four weeks. It was 1.59K contracts on Oct 7, 2026. See the DCI open interest history for a longer view.
What is the DCI put/call open interest ratio?
The Donaldson put/call open interest ratio was 0.86 as of Nov 4, 2026. Four weeks earlier it was 0.47.
What is Donaldson Company Inc?
Donaldson is a leading manufacturer of filtration systems and replacement parts, including air filtration systems, liquid filtration systems, and dust, fume, and mist collectors.