MSM Open Interest
MSC Industrial Direct Co Inc (MSM) had 4.3K open option contracts as of Nov 4, 2026: 2.87K calls and 1.43K puts. Open interest rose 7.5% over the past four weeks. The put/call open interest ratio is 0.50, so calls outnumber puts.
Open Interest by Strike
Showing results for MSM, 2026-11-20(m), calls & puts
Open Interest Stats
Showing results for MSM, 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 MSM, 2026-11-20(m), calls & puts
Open Interest Total by Expiry
Showing results for MSM, 2026-11-20(m), calls & puts. View all expiries
Open Interest History
Showing daily totals for MSM, all expirations, calls & puts. View full history
MSM 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 MSM have?
MSC Industrial Direct had 4.3K open option contracts as of Nov 4, 2026. Over the past 30 days, open interest averaged 4.1K contracts.
Is MSM open interest rising or falling?
Open interest rose 7.5% over the past four weeks. It was 4.0K contracts on Oct 7, 2026. See the MSM open interest history for a longer view.
What is the MSM put/call open interest ratio?
The MSC Industrial Direct put/call open interest ratio was 0.50 as of Nov 4, 2026. Four weeks earlier it was 0.84.
What is MSC Industrial Direct Co Inc?
Founded in 1941, MSC Industrial Direct originally manufactured and sold cutting tools to metalworking shops in New York.