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Contract OI history

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Oct 30, 2026 EXPIRATION

BSX $37.00 Put

BSX261030P00037000

Latest saved OI111Oct 23, 2026
Last change+18vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BSX $37.00 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. 111550 2026-10-02: 82 OI2026-10-05: 90 OI2026-10-06: 95 OI2026-10-07: 97 OI2026-10-08: 97 OI2026-10-09: 103 OI2026-10-13: 105 OI2026-10-14: 105 OI2026-10-15: 105 OI2026-10-16: 105 OI2026-10-21: 93 OI2026-10-23: 111 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, 2026Viewing111+18
Oct 21, 202693-12
Oct 16, 20261050
Oct 15, 20261050
Oct 14, 20261050
Oct 13, 2026105+2
Oct 09, 2026103+6
Oct 08, 2026970
Oct 07, 202697+2
Oct 06, 202695+5
Oct 05, 202690+8
Oct 02, 202682No prior observation