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Contract OI history

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Jun 17, 2027 EXPIRATION

BSP $17.50 Put

BSP270617P00017500

Latest saved OI2Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
BSP $17.50 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. 210 2026-10-08: 2 OI2026-10-13: 2 OI2026-10-14: 2 OI2026-10-15: 2 OI2026-10-16: 2 OI2026-10-21: 2 OI2026-10-23: 2 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, 2026Viewing20
Oct 21, 202620
Oct 16, 202620
Oct 15, 202620
Oct 14, 202620
Oct 13, 202620
Oct 08, 20262No prior observation