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Contract OI history

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Dec 18, 2026 EXPIRATION

SO $87.50 Call

SO261218C00087500

Latest saved OI396Oct 23, 2026
Last change-1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
SO $87.50 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 4422210 2026-10-02: 411 OI2026-10-05: 432 OI2026-10-06: 429 OI2026-10-07: 439 OI2026-10-08: 414 OI2026-10-09: 414 OI2026-10-13: 442 OI2026-10-14: 442 OI2026-10-15: 442 OI2026-10-16: 442 OI2026-10-21: 397 OI2026-10-23: 396 OI Oct 02, 2026Oct 23, 2026

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

SO contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing396-1
Oct 21, 2026397-45
Oct 16, 20264420
Oct 15, 20264420
Oct 14, 20264420
Oct 13, 2026442+28
Oct 09, 20264140
Oct 08, 2026414-25
Oct 07, 2026439+10
Oct 06, 2026429-3
Oct 05, 2026432+21
Oct 02, 2026411No prior observation