ON Open Interest
ON Semiconductor Corp (ON) had 300.44K open option contracts as of Nov 4, 2026: 173.19K calls and 127.25K puts. Open interest fell 3.1% over the past four weeks. The put/call open interest ratio is 0.73, so calls outnumber puts.
Open Interest by Strike
Showing results for ON, 2026-11-06(w), calls & puts
Open Interest Stats
Showing results for ON, 2026-11-06(w), 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 ON, 2026-11-06(w), calls & puts
Open Interest Total by Expiry
Showing results for ON, 2026-11-06(w), calls & puts. View all expiries
ON 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 ON have?
ON Semiconductor had 300.44K open option contracts as of Nov 4, 2026. Over the past 30 days, open interest averaged 294.61K contracts.
Is ON open interest rising or falling?
Open interest fell 3.1% over the past four weeks. It was 310.19K contracts on Oct 7, 2026. See the ON open interest history for a longer view.
What is the ON put/call open interest ratio?
The ON Semiconductor put/call open interest ratio was 0.73 as of Nov 4, 2026. Four weeks earlier it was 0.65.