OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

WT $20.00 Put

WT261218P00020000

Latest saved OI159Oct 23, 2026
Last change+2vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WT $20.00 put open interest history 10 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 159790 2026-10-02: 157 OI2026-10-06: 157 OI2026-10-07: 157 OI2026-10-08: 157 OI2026-10-09: 157 OI2026-10-13: 157 OI2026-10-14: 157 OI2026-10-16: 157 OI2026-10-20: 157 OI2026-10-23: 159 OI Oct 02, 2026Oct 23, 2026

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

WT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026159+2
Oct 20, 2026Viewing1570
Oct 16, 20261570
Oct 14, 20261570
Oct 13, 20261570
Oct 09, 20261570
Oct 08, 20261570
Oct 07, 20261570
Oct 06, 20261570
Oct 02, 2026157No prior observation