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Contract OI history

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Nov 20, 2026 EXPIRATION

BSP $20.00 Put

BSP261120P00020000

Latest saved OI280Oct 23, 2026
Last change+119vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
BSP $20.00 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. 2801400 2026-10-08: 2 OI2026-10-13: 2 OI2026-10-14: 2 OI2026-10-15: 50 OI2026-10-16: 51 OI2026-10-21: 161 OI2026-10-23: 280 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, 2026Viewing280+119
Oct 21, 2026161+110
Oct 16, 202651+1
Oct 15, 202650+48
Oct 14, 202620
Oct 13, 202620
Oct 08, 20262No prior observation