OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

W $85.00 Put

W261120P00085000

Latest saved OI345Oct 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
W $85.00 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. 3611800 2026-10-02: 266 OI2026-10-05: 266 OI2026-10-06: 343 OI2026-10-07: 361 OI2026-10-08: 361 OI2026-10-09: 361 OI2026-10-13: 356 OI2026-10-14: 356 OI2026-10-15: 356 OI2026-10-16: 342 OI2026-10-21: 344 OI2026-10-23: 345 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, 2026Viewing345+1
Oct 21, 2026344+2
Oct 16, 2026342-14
Oct 15, 20263560
Oct 14, 20263560
Oct 13, 2026356-5
Oct 09, 20263610
Oct 08, 20263610
Oct 07, 2026361+18
Oct 06, 2026343+77
Oct 05, 20262660
Oct 02, 2026266No prior observation