BSX Open Interest
Boston Scientific Corp (BSX) had 723.75K open option contracts as of Nov 4, 2026: 443.81K calls and 279.94K puts. Open interest fell 16.2% over the past four weeks. The put/call open interest ratio is 0.63, so calls outnumber puts.
Open Interest by Strike
Showing results for BSX, 2026-11-06(w), calls & puts
Open Interest Stats
Showing results for BSX, 2026-11-06(w), 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 BSX, 2026-11-06(w), calls & puts
Open Interest Total by Expiry
Showing results for BSX, 2026-11-06(w), calls & puts. View all expiries
Open Interest History
Showing daily totals for BSX, all expirations, calls & puts. View full history
BSX 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 BSX have?
Boston Scientific had 723.75K open option contracts as of Nov 4, 2026. Over the past 30 days, open interest averaged 871.3K contracts.
Is BSX open interest rising or falling?
Open interest fell 16.2% over the past four weeks. It was 863.69K contracts on Oct 7, 2026. See the BSX open interest history for a longer view.
What is the BSX put/call open interest ratio?
The Boston Scientific put/call open interest ratio was 0.63 as of Nov 4, 2026. Four weeks earlier it was 0.40.
What is Boston Scientific Corp?
Boston Scientific focuses on less invasive medical devices that are inserted into the human body through small openings or cuts.