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Contract OI history

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Nov 20, 2026 EXPIRATION

BSX $65.00 Call

BSX261120C00065000

Latest saved OI1,354Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BSX $65.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,3556770 2026-10-02: 1,327 OI2026-10-05: 1,327 OI2026-10-06: 1,327 OI2026-10-07: 1,355 OI2026-10-08: 1,355 OI2026-10-09: 1,354 OI2026-10-13: 1,350 OI2026-10-14: 1,350 OI2026-10-15: 1,350 OI2026-10-16: 1,350 OI2026-10-21: 1,354 OI2026-10-23: 1,354 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

BSX contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,3540
Oct 21, 20261,354+4
Oct 16, 20261,3500
Oct 15, 20261,3500
Oct 14, 20261,3500
Oct 13, 20261,350-4
Oct 09, 20261,354-1
Oct 08, 20261,3550
Oct 07, 20261,355+28
Oct 06, 20261,3270
Oct 05, 20261,3270
Oct 02, 20261,327No prior observation