OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

W $100.00 Put

W261218P00100000

Latest saved OI205Oct 23, 2026
Last change+59vs 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. 2051020 2026-10-02: 136 OI2026-10-05: 136 OI2026-10-06: 136 OI2026-10-07: 136 OI2026-10-08: 136 OI2026-10-09: 135 OI2026-10-13: 135 OI2026-10-14: 135 OI2026-10-15: 135 OI2026-10-16: 137 OI2026-10-21: 146 OI2026-10-23: 205 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, 2026205+59
Oct 21, 2026Viewing146+9
Oct 16, 2026137+2
Oct 15, 20261350
Oct 14, 20261350
Oct 13, 20261350
Oct 09, 2026135-1
Oct 08, 20261360
Oct 07, 20261360
Oct 06, 20261360
Oct 05, 20261360
Oct 02, 2026136No prior observation