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Contract OI history

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Dec 18, 2026 EXPIRATION

SOBO $40.00 Call

SOBO261218C00040000

Latest saved OI3,329Oct 23, 2026
Last change+3,329vs previous saved observation
Saved market days3Oct 16, 2026 onwards
Daily open interest Hover a point for its date and OI
SOBO $40.00 call open interest history 3 saved observations from 2026-10-16 to 2026-10-23. Exact values and changes are listed in the table below. 3,3291,6640 2026-10-16: 0 OI2026-10-20: 0 OI2026-10-23: 3,329 OI Oct 16, 2026Oct 23, 2026

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

SOBO contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing3,329+3,329
Oct 20, 202600
Oct 16, 20260No prior observation