CLB Open Interest
Core Laboratories Inc (CLB) had 1.84K open option contracts as of Nov 4, 2026: 1.48K calls and 362 puts. Open interest rose 45.3% over the past four weeks, and is CLB's highest level in 12 weeks. The put/call open interest ratio is 0.25, so calls outnumber puts.
Open Interest by Strike
Showing results for CLB, 2026-11-20(m), calls & puts
Open Interest Stats
Showing results for CLB, 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 CLB, 2026-11-20(m), calls & puts
Open Interest Total by Expiry
Showing results for CLB, 2026-11-20(m), calls & puts. View all expiries
Open Interest History
Showing daily totals for CLB, all expirations, calls & puts. View full history
CLB 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 CLB have?
Core Laboratories had 1.84K open option contracts as of Nov 4, 2026. Over the past 30 days, open interest averaged 1.58K contracts.
Is CLB open interest rising or falling?
Open interest rose 45.3% over the past four weeks, and is CLB's highest level in 12 weeks. It was 1.27K contracts on Oct 7, 2026. See the CLB open interest history for a longer view.
What is the CLB put/call open interest ratio?
The Core Laboratories put/call open interest ratio was 0.25 as of Nov 4, 2026. Four weeks earlier it was 0.11.
What is Core Laboratories Inc?
Core Laboratories Inc is a providers of proprietary and patented reservoir description and production enhancement services and products to the oil and gas industry, through client relationships.