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Contract OI history

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Jan 15, 2027 EXPIRATION

BSM $12.50 Put

BSM270115P00012500

Latest saved OI868Oct 23, 2026
Last change0vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BSM $12.50 put open interest history 10 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 8684340 2026-10-02: 868 OI2026-10-05: 868 OI2026-10-07: 868 OI2026-10-08: 868 OI2026-10-09: 868 OI2026-10-13: 868 OI2026-10-14: 868 OI2026-10-16: 868 OI2026-10-20: 868 OI2026-10-23: 868 OI Oct 02, 2026Oct 23, 2026

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

BSM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing8680
Oct 20, 20268680
Oct 16, 20268680
Oct 14, 20268680
Oct 13, 20268680
Oct 09, 20268680
Oct 08, 20268680
Oct 07, 20268680
Oct 05, 20268680
Oct 02, 2026868No prior observation