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Contract OI history

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Dec 18, 2026 EXPIRATION

BSX $45.00 Call

BSX261218C00045000

Latest saved OI3,234Oct 23, 2026
Last change+53vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BSX $45.00 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. 3,2341,6170 2026-10-02: 2,796 OI2026-10-05: 2,846 OI2026-10-06: 2,936 OI2026-10-07: 3,057 OI2026-10-08: 3,057 OI2026-10-09: 3,107 OI2026-10-13: 3,125 OI2026-10-14: 3,125 OI2026-10-15: 3,142 OI2026-10-16: 3,164 OI2026-10-21: 3,181 OI2026-10-23: 3,234 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, 2026Viewing3,234+53
Oct 21, 20263,181+17
Oct 16, 20263,164+22
Oct 15, 20263,142+17
Oct 14, 20263,1250
Oct 13, 20263,125+18
Oct 09, 20263,107+50
Oct 08, 20263,0570
Oct 07, 20263,057+121
Oct 06, 20262,936+90
Oct 05, 20262,846+50
Oct 02, 20262,796No prior observation