FSLY Open Interest
Fastly Inc (FSLY) had 197.96K open option contracts as of Nov 4, 2026: 101.71K calls and 96.26K puts. Open interest fell 15.1% over the past four weeks. The put/call open interest ratio is 0.95, so calls and puts are about even.
Open Interest by Strike
Showing results for FSLY, 2026-11-06(w), calls & puts
Open Interest Stats
Showing results for FSLY, 2026-11-06(w), calls & puts
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| Put Open Interest Total | |
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Highest Open Interest Options
Showing results for FSLY, 2026-11-06(w), calls & puts
Open Interest Total by Expiry
Showing results for FSLY, 2026-11-06(w), calls & puts. View all expiries
Open Interest History
Showing daily totals for FSLY, all expirations, calls & puts. View full history
FSLY 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 FSLY have?
Fastly had 197.96K open option contracts as of Nov 4, 2026. Over the past 30 days, open interest averaged 209.47K contracts.
Is FSLY open interest rising or falling?
Open interest fell 15.1% over the past four weeks. It was 233.21K contracts on Oct 7, 2026. See the FSLY open interest history for a longer view.
What is the FSLY put/call open interest ratio?
The Fastly put/call open interest ratio was 0.95 as of Nov 4, 2026. Four weeks earlier it was 0.92.
What is Fastly Inc?
Fastly Inc is a cloud computing company that provides an edge cloud platform designed to deliver, secure, and optimize digital experiences over the internet.