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Contract OI history

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Jan 15, 2027 EXPIRATION

BSX $45.00 Put

BSX270115P00045000

Latest saved OI3,543Oct 23, 2026
Last change+7vs 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. 3,8701,9350 2026-10-02: 3,870 OI2026-10-05: 3,870 OI2026-10-06: 3,869 OI2026-10-07: 3,735 OI2026-10-08: 3,735 OI2026-10-09: 3,735 OI2026-10-13: 3,638 OI2026-10-14: 3,638 OI2026-10-15: 3,667 OI2026-10-16: 3,647 OI2026-10-21: 3,536 OI2026-10-23: 3,543 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, 2026Viewing3,543+7
Oct 21, 20263,536-111
Oct 16, 20263,647-20
Oct 15, 20263,667+29
Oct 14, 20263,6380
Oct 13, 20263,638-97
Oct 09, 20263,7350
Oct 08, 20263,7350
Oct 07, 20263,735-134
Oct 06, 20263,869-1
Oct 05, 20263,8700
Oct 02, 20263,870No prior observation