OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

W $100.00 Put

W261120P00100000

Latest saved OI1,143Oct 23, 2026
Last change+21vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
W $100.00 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. 1,1435710 2026-10-02: 1,020 OI2026-10-05: 1,020 OI2026-10-06: 1,049 OI2026-10-07: 1,049 OI2026-10-08: 1,049 OI2026-10-09: 1,049 OI2026-10-13: 1,049 OI2026-10-14: 1,049 OI2026-10-15: 1,063 OI2026-10-16: 1,078 OI2026-10-21: 1,122 OI2026-10-23: 1,143 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, 2026Viewing1,143+21
Oct 21, 20261,122+44
Oct 16, 20261,078+15
Oct 15, 20261,063+14
Oct 14, 20261,0490
Oct 13, 20261,0490
Oct 09, 20261,0490
Oct 08, 20261,0490
Oct 07, 20261,0490
Oct 06, 20261,049+29
Oct 05, 20261,0200
Oct 02, 20261,020No prior observation