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Contract OI history

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Jan 19, 2029 EXPIRATION

BSX $35.00 Put

BSX290119P00035000

Latest saved OI1,114Oct 23, 2026
Last change+1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BSX $35.00 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. 1,1155570 2026-10-02: 1,042 OI2026-10-05: 1,043 OI2026-10-06: 1,074 OI2026-10-07: 1,097 OI2026-10-08: 1,097 OI2026-10-09: 1,093 OI2026-10-13: 1,115 OI2026-10-14: 1,115 OI2026-10-15: 1,113 OI2026-10-16: 1,113 OI2026-10-21: 1,113 OI2026-10-23: 1,114 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, 2026Viewing1,114+1
Oct 21, 20261,1130
Oct 16, 20261,1130
Oct 15, 20261,113-2
Oct 14, 20261,1150
Oct 13, 20261,115+22
Oct 09, 20261,093-4
Oct 08, 20261,0970
Oct 07, 20261,097+23
Oct 06, 20261,074+31
Oct 05, 20261,043+1
Oct 02, 20261,042No prior observation