OITracker Cboe delayed data

Contract OI history

Back to SO

Jan 15, 2027 EXPIRATION

SO $90.00 Put

SO270115P00090000

Latest saved OI617Oct 23, 2026
Last change+17vs 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. 6173080 2026-10-02: 601 OI2026-10-05: 601 OI2026-10-06: 597 OI2026-10-07: 593 OI2026-10-08: 593 OI2026-10-09: 593 OI2026-10-13: 595 OI2026-10-14: 595 OI2026-10-15: 598 OI2026-10-16: 598 OI2026-10-21: 600 OI2026-10-23: 617 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, 2026Viewing617+17
Oct 21, 2026600+2
Oct 16, 20265980
Oct 15, 2026598+3
Oct 14, 20265950
Oct 13, 2026595+2
Oct 09, 20265930
Oct 08, 20265930
Oct 07, 2026593-4
Oct 06, 2026597-4
Oct 05, 20266010
Oct 02, 2026601No prior observation