OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

SO $90.00 Put

SO261120P00090000

Latest saved OI1,512Oct 23, 2026
Last change+8vs 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. 1,5127560 2026-10-02: 1,325 OI2026-10-05: 1,325 OI2026-10-06: 1,325 OI2026-10-07: 1,325 OI2026-10-08: 1,325 OI2026-10-09: 1,325 OI2026-10-13: 1,325 OI2026-10-14: 1,325 OI2026-10-15: 1,332 OI2026-10-16: 1,338 OI2026-10-21: 1,504 OI2026-10-23: 1,512 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, 20261,512+8
Oct 21, 2026Viewing1,504+166
Oct 16, 20261,338+6
Oct 15, 20261,332+7
Oct 14, 20261,3250
Oct 13, 20261,3250
Oct 09, 20261,3250
Oct 08, 20261,3250
Oct 07, 20261,3250
Oct 06, 20261,3250
Oct 05, 20261,3250
Oct 02, 20261,325No prior observation