MKTX Open Interest
MarketAxess Holdings Inc (MKTX) had 6.79K open option contracts as of Nov 4, 2026: 6.05K calls and 741 puts. Open interest rose 193.3% over the past four weeks, and is MKTX's highest level in 8 weeks. The put/call open interest ratio is 0.12, so calls outnumber puts.
Open Interest by Strike
Showing results for MKTX, 2026-11-20(m), calls & puts
Open Interest Stats
Showing results for MKTX, 2026-11-20(m), calls & puts
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| Put Open Interest Total | |
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Highest Open Interest Options
Showing results for MKTX, 2026-11-20(m), calls & puts
Open Interest Total by Expiry
Showing results for MKTX, 2026-11-20(m), calls & puts. View all expiries
Open Interest History
Showing daily totals for MKTX, all expirations, calls & puts. View full history
MKTX 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 MKTX have?
MarketAxess had 6.79K open option contracts as of Nov 4, 2026. Over the past 30 days, open interest averaged 2.98K contracts.
Is MKTX open interest rising or falling?
Open interest rose 193.3% over the past four weeks, and is MKTX's highest level in 8 weeks. It was 2.32K contracts on Oct 7, 2026. See the MKTX open interest history for a longer view.
What is the MKTX put/call open interest ratio?
The MarketAxess put/call open interest ratio was 0.12 as of Nov 4, 2026. Four weeks earlier it was 0.46.
What is MarketAxess Holdings Inc?
Founded in 2000, MarketAxess is a leading electronic fixed-income trading platform that connects broker/dealers and institutional investors.