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Contract OI history

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Oct 30, 2026 EXPIRATION

BSX $45.00 Put

BSX261030P00045000

Latest saved OI2,765Oct 23, 2026
Last change+479vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BSX $45.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2,7651,3820 2026-10-02: 508 OI2026-10-05: 526 OI2026-10-06: 530 OI2026-10-07: 530 OI2026-10-08: 530 OI2026-10-09: 532 OI2026-10-13: 540 OI2026-10-14: 540 OI2026-10-15: 974 OI2026-10-16: 964 OI2026-10-21: 2,286 OI2026-10-23: 2,765 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, 2026Viewing2,765+479
Oct 21, 20262,286+1,322
Oct 16, 2026964-10
Oct 15, 2026974+434
Oct 14, 20265400
Oct 13, 2026540+8
Oct 09, 2026532+2
Oct 08, 20265300
Oct 07, 20265300
Oct 06, 2026530+4
Oct 05, 2026526+18
Oct 02, 2026508No prior observation