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Contract OI history

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Apr 16, 2027 EXPIRATION

BSP $35.00 Put

BSP270416P00035000

Latest saved OI1,544Oct 23, 2026
Last change+2vs 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. 1,5447720 2026-10-08: 1,527 OI2026-10-13: 1,527 OI2026-10-14: 1,527 OI2026-10-15: 1,527 OI2026-10-16: 1,530 OI2026-10-21: 1,542 OI2026-10-23: 1,544 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, 2026Viewing1,544+2
Oct 21, 20261,542+12
Oct 16, 20261,530+3
Oct 15, 20261,5270
Oct 14, 20261,5270
Oct 13, 20261,5270
Oct 08, 20261,527No prior observation