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Contract OI history

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Jan 21, 2028 EXPIRATION

BSX $155.00 Call

BSX280121C00155000

Latest saved OI1,255Oct 23, 2026
Last change+3vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BSX $155.00 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. 1,2556270 2026-10-02: 1,085 OI2026-10-05: 1,086 OI2026-10-06: 1,086 OI2026-10-07: 1,086 OI2026-10-08: 1,086 OI2026-10-09: 1,086 OI2026-10-13: 1,086 OI2026-10-14: 1,086 OI2026-10-15: 1,086 OI2026-10-16: 1,086 OI2026-10-21: 1,252 OI2026-10-23: 1,255 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, 2026Viewing1,255+3
Oct 21, 20261,252+166
Oct 16, 20261,0860
Oct 15, 20261,0860
Oct 14, 20261,0860
Oct 13, 20261,0860
Oct 09, 20261,0860
Oct 08, 20261,0860
Oct 07, 20261,0860
Oct 06, 20261,0860
Oct 05, 20261,086+1
Oct 02, 20261,085No prior observation