FIX Open Interest
Comfort Systems USA Inc (FIX) had 23.85K open option contracts as of Nov 4, 2026: 11.9K calls and 11.95K puts. Open interest rose 12.7% over the past four weeks, and is FIX's highest level in 12 weeks. The put/call open interest ratio is 1.00, so calls and puts are about even.
Open Interest by Strike
Showing results for FIX, 2026-11-20(m), calls & puts
Open Interest Stats
Showing results for FIX, 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 FIX, 2026-11-20(m), calls & puts
Open Interest Total by Expiry
Showing results for FIX, 2026-11-20(m), calls & puts. View all expiries
Open Interest History
Showing daily totals for FIX, all expirations, calls & puts. View full history
FIX 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 FIX have?
Comfort Systems USA had 23.85K open option contracts as of Nov 4, 2026. Over the past 30 days, open interest averaged 21.53K contracts.
Is FIX open interest rising or falling?
Open interest rose 12.7% over the past four weeks, and is FIX's highest level in 12 weeks. It was 21.17K contracts on Oct 7, 2026. See the FIX open interest history for a longer view.
What is the FIX put/call open interest ratio?
The Comfort Systems USA put/call open interest ratio was 1.00 as of Nov 4, 2026. Four weeks earlier it was 1.21.
What is Comfort Systems USA Inc?
Comfort Systems is a mechanical, electrical, and plumbing contractor with significant exposure to the AI infrastructure buildout, with data centers and semiconductor projects accounting for over half of its sales today.