MRTN Open Interest
Marten Transport Ltd (MRTN) had 3.07K open option contracts as of Nov 4, 2026: 1.87K calls and 1.2K puts. Open interest rose 139.2% over the past four weeks. The put/call open interest ratio is 0.64, so calls outnumber puts.
Open Interest by Strike
Showing results for MRTN, 2026-11-20(m), calls & puts
Open Interest Stats
Showing results for MRTN, 2026-11-20(m), calls & puts
| Call Open Interest Total | |
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| Put Open Interest Total | |
| Open Interest Total | |
| Put-Call Open Interest Ratio |
Highest Open Interest Options
Showing results for MRTN, 2026-11-20(m), calls & puts
Open Interest Total by Expiry
Showing results for MRTN, 2026-11-20(m), calls & puts. View all expiries
Open Interest History
Showing daily totals for MRTN, all expirations, calls & puts. View full history
MRTN 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 MRTN have?
Marten Transport had 3.07K open option contracts as of Nov 4, 2026. Over the past 30 days, open interest averaged 2.11K contracts.
Is MRTN open interest rising or falling?
Open interest rose 139.2% over the past four weeks. It was 1.28K contracts on Oct 7, 2026. See the MRTN open interest history for a longer view.
What is the MRTN put/call open interest ratio?
The Marten Transport put/call open interest ratio was 0.64 as of Nov 4, 2026. Four weeks earlier it was 0.18.
What is Marten Transport Ltd?
Marten Transport Ltd is a temperature-sensitive and dry truckload carrier in the United States.