STM Open Interest
STMicroelectronics N.V. (STM) had 352.73K open option contracts as of Nov 4, 2026: 196.91K calls and 155.82K puts. Open interest fell 5.2% over the past four weeks. The put/call open interest ratio is 0.79, so calls outnumber puts.
Open Interest by Strike
Showing results for STM, 2026-11-06(w), calls & puts
Open Interest Stats
Showing results for STM, 2026-11-06(w), calls & puts
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| Put Open Interest Total | |
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Highest Open Interest Options
Showing results for STM, 2026-11-06(w), calls & puts
Open Interest Total by Expiry
Showing results for STM, 2026-11-06(w), calls & puts. View all expiries
Open Interest History
Showing daily totals for STM, all expirations, calls & puts. View full history
STM 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 STM have?
STMicroelectronics had 352.73K open option contracts as of Nov 4, 2026. Over the past 30 days, open interest averaged 348.75K contracts.
Is STM open interest rising or falling?
Open interest fell 5.2% over the past four weeks. It was 372.08K contracts on Oct 7, 2026. See the STM open interest history for a longer view.
What is the STM put/call open interest ratio?
The STMicroelectronics put/call open interest ratio was 0.79 as of Nov 4, 2026. Four weeks earlier it was 0.76.
What is STMicroelectronics N.V.?
A merger between Italian firm SGS Microelettronica and the nonmilitary business of Thomson Semiconducteurs in France formed STMicroelectronics in 1987.