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Contract OI history

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Jun 17, 2027 EXPIRATION

BSX $40.00 Call

BSX270617C00040000

Latest saved OI1,572Oct 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 $40.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,5727860 2026-10-02: 1,565 OI2026-10-05: 1,559 OI2026-10-06: 1,560 OI2026-10-07: 1,561 OI2026-10-08: 1,561 OI2026-10-09: 1,562 OI2026-10-13: 1,566 OI2026-10-14: 1,566 OI2026-10-15: 1,565 OI2026-10-16: 1,565 OI2026-10-21: 1,565 OI2026-10-23: 1,572 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, 2026Viewing1,572+7
Oct 21, 20261,5650
Oct 16, 20261,5650
Oct 15, 20261,565-1
Oct 14, 20261,5660
Oct 13, 20261,566+4
Oct 09, 20261,562+1
Oct 08, 20261,5610
Oct 07, 20261,561+1
Oct 06, 20261,560+1
Oct 05, 20261,559-6
Oct 02, 20261,565No prior observation