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Contract OI history

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Dec 18, 2026 EXPIRATION

BSX $67.50 Call

BSX261218C00067500

Latest saved OI114,291Oct 23, 2026
Last change+24vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BSX $67.50 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. 114,29157,1450 2026-10-02: 114,180 OI2026-10-05: 114,176 OI2026-10-06: 114,220 OI2026-10-07: 114,250 OI2026-10-08: 114,250 OI2026-10-09: 114,250 OI2026-10-13: 114,258 OI2026-10-14: 114,258 OI2026-10-15: 114,256 OI2026-10-16: 114,256 OI2026-10-21: 114,267 OI2026-10-23: 114,291 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, 2026Viewing114,291+24
Oct 21, 2026114,267+11
Oct 16, 2026114,2560
Oct 15, 2026114,256-2
Oct 14, 2026114,2580
Oct 13, 2026114,258+8
Oct 09, 2026114,2500
Oct 08, 2026114,2500
Oct 07, 2026114,250+30
Oct 06, 2026114,220+44
Oct 05, 2026114,176-4
Oct 02, 2026114,180No prior observation