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Contract OI history

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Feb 19, 2027 EXPIRATION

BSY $40.00 Call

BSY270219C00040000

Latest saved OI80Oct 23, 2026
Last change-5vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
BSY $40.00 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 85420 2026-10-09: 69 OI2026-10-13: 69 OI2026-10-14: 69 OI2026-10-15: 82 OI2026-10-16: 73 OI2026-10-21: 85 OI2026-10-23: 80 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

BSY contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing80-5
Oct 21, 202685+12
Oct 16, 202673-9
Oct 15, 202682+13
Oct 14, 2026690
Oct 13, 2026690
Oct 09, 202669No prior observation