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Contract OI history

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Jan 15, 2027 EXPIRATION

BSM $17.50 Call

BSM270115C00017500

Latest saved OI511Oct 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 $17.50 call open interest history 10 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 6143070 2026-10-02: 614 OI2026-10-05: 614 OI2026-10-07: 614 OI2026-10-08: 614 OI2026-10-09: 613 OI2026-10-13: 613 OI2026-10-14: 613 OI2026-10-16: 613 OI2026-10-20: 511 OI2026-10-23: 511 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, 2026Viewing5110
Oct 20, 2026511-102
Oct 16, 20266130
Oct 14, 20266130
Oct 13, 20266130
Oct 09, 2026613-1
Oct 08, 20266140
Oct 07, 20266140
Oct 05, 20266140
Oct 02, 2026614No prior observation