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Contract OI history

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Nov 20, 2026 EXPIRATION

BSP $35.00 Put

BSP261120P00035000

Latest saved OI4,489Oct 23, 2026
Last change+530vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
BSP $35.00 put open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 4,4892,2440 2026-10-08: 2,726 OI2026-10-13: 2,818 OI2026-10-14: 2,821 OI2026-10-15: 2,864 OI2026-10-16: 3,778 OI2026-10-21: 3,959 OI2026-10-23: 4,489 OI Oct 08, 2026Oct 23, 2026

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

BSP contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing4,489+530
Oct 21, 20263,959+181
Oct 16, 20263,778+914
Oct 15, 20262,864+43
Oct 14, 20262,821+3
Oct 13, 20262,818+92
Oct 08, 20262,726No prior observation