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Contract OI history

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Dec 18, 2026 EXPIRATION

SO $90.00 Put

SO261218P00090000

Latest saved OI175Oct 23, 2026
Last change-4vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
SO $90.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 179890 2026-10-02: 77 OI2026-10-05: 77 OI2026-10-06: 77 OI2026-10-07: 77 OI2026-10-08: 77 OI2026-10-09: 77 OI2026-10-13: 87 OI2026-10-14: 87 OI2026-10-15: 81 OI2026-10-16: 84 OI2026-10-21: 179 OI2026-10-23: 175 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, 2026Viewing175-4
Oct 21, 2026179+95
Oct 16, 202684+3
Oct 15, 202681-6
Oct 14, 2026870
Oct 13, 202687+10
Oct 09, 2026770
Oct 08, 2026770
Oct 07, 2026770
Oct 06, 2026770
Oct 05, 2026770
Oct 02, 202677No prior observation