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Contract OI history

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Nov 20, 2026 EXPIRATION

BSP $39.00 Put

BSP261120P00039000

Latest saved OI71Oct 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 $39.00 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. 73360 2026-10-08: 11 OI2026-10-13: 15 OI2026-10-14: 15 OI2026-10-15: 34 OI2026-10-16: 36 OI2026-10-21: 73 OI2026-10-23: 71 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, 2026Viewing71-2
Oct 21, 202673+37
Oct 16, 202636+2
Oct 15, 202634+19
Oct 14, 2026150
Oct 13, 202615+4
Oct 08, 202611No prior observation