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Contract OI history

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Feb 19, 2027 EXPIRATION

BSX $50.00 Call

BSX270219C00050000

Latest saved OI736Oct 23, 2026
Last change+43vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BSX $50.00 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. 7363680 2026-10-02: 517 OI2026-10-05: 614 OI2026-10-06: 626 OI2026-10-07: 664 OI2026-10-08: 664 OI2026-10-09: 651 OI2026-10-13: 654 OI2026-10-14: 654 OI2026-10-15: 656 OI2026-10-16: 657 OI2026-10-21: 693 OI2026-10-23: 736 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, 2026Viewing736+43
Oct 21, 2026693+36
Oct 16, 2026657+1
Oct 15, 2026656+2
Oct 14, 20266540
Oct 13, 2026654+3
Oct 09, 2026651-13
Oct 08, 20266640
Oct 07, 2026664+38
Oct 06, 2026626+12
Oct 05, 2026614+97
Oct 02, 2026517No prior observation