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Contract OI history

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Oct 23, 2026 EXPIRATION

BSX $41.00 Put

BSX261023P00041000

Latest saved OI333Oct 23, 2026
Last change-5vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BSX $41.00 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. 3381690 2026-10-02: 126 OI2026-10-05: 128 OI2026-10-06: 194 OI2026-10-07: 198 OI2026-10-08: 198 OI2026-10-09: 201 OI2026-10-13: 265 OI2026-10-14: 265 OI2026-10-15: 278 OI2026-10-16: 286 OI2026-10-21: 338 OI2026-10-23: 333 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, 2026Viewing333-5
Oct 21, 2026338+52
Oct 16, 2026286+8
Oct 15, 2026278+13
Oct 14, 20262650
Oct 13, 2026265+64
Oct 09, 2026201+3
Oct 08, 20261980
Oct 07, 2026198+4
Oct 06, 2026194+66
Oct 05, 2026128+2
Oct 02, 2026126No prior observation