OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

W $82.50 Put

W261120P00082500

Latest saved OI407Oct 23, 2026
Last change+22vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
W $82.50 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. 4072030 2026-10-02: 389 OI2026-10-05: 389 OI2026-10-06: 387 OI2026-10-07: 387 OI2026-10-08: 388 OI2026-10-09: 388 OI2026-10-13: 391 OI2026-10-14: 391 OI2026-10-15: 391 OI2026-10-16: 392 OI2026-10-21: 385 OI2026-10-23: 407 OI Oct 02, 2026Oct 23, 2026

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

W contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026407+22
Oct 21, 2026Viewing385-7
Oct 16, 2026392+1
Oct 15, 20263910
Oct 14, 20263910
Oct 13, 2026391+3
Oct 09, 20263880
Oct 08, 2026388+1
Oct 07, 20263870
Oct 06, 2026387-2
Oct 05, 20263890
Oct 02, 2026389No prior observation