ROK Open Interest
Rockwell Automation Inc (ROK) had 13.12K open option contracts as of Nov 4, 2026: 7.49K calls and 5.63K puts. Open interest fell 7.9% over the past four weeks. The put/call open interest ratio is 0.75, so calls outnumber puts.
Open Interest by Strike
Showing results for ROK, 2026-11-20(m), calls & puts
Open Interest Stats
Showing results for ROK, 2026-11-20(m), calls & puts
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| Put Open Interest Total | |
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Highest Open Interest Options
Showing results for ROK, 2026-11-20(m), calls & puts
Open Interest Total by Expiry
Showing results for ROK, 2026-11-20(m), calls & puts. View all expiries
Open Interest History
Showing daily totals for ROK, all expirations, calls & puts. View full history
ROK 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 ROK have?
Rockwell Automation had 13.12K open option contracts as of Nov 4, 2026. Over the past 30 days, open interest averaged 13.28K contracts.
Is ROK open interest rising or falling?
Open interest fell 7.9% over the past four weeks. It was 14.25K contracts on Oct 7, 2026. See the ROK open interest history for a longer view.
What is the ROK put/call open interest ratio?
The Rockwell Automation put/call open interest ratio was 0.75 as of Nov 4, 2026. Four weeks earlier it was 0.85.
What is Rockwell Automation Inc?
With roots tracing back to the early 1900s, Rockwell Automation is the successor to Rockwell International, which spun off its avionics segment in 2001.