OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

WMT $100.00 Put

WMT280121P00100000

Latest saved OI3,542Oct 23, 2026
Last change+23vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WMT $100.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 3,5421,7710 2026-10-09: 3,140 OI2026-10-12: 3,128 OI2026-10-14: 3,119 OI2026-10-15: 3,114 OI2026-10-16: 3,402 OI2026-10-21: 3,519 OI2026-10-23: 3,542 OI Oct 09, 2026Oct 23, 2026

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

WMT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing3,542+23
Oct 21, 20263,519+117
Oct 16, 20263,402+288
Oct 15, 20263,114-5
Oct 14, 20263,119-9
Oct 12, 20263,128-12
Oct 09, 20263,140No prior observation