OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

WMT $120.00 Put

WMT280121P00120000

Latest saved OI1,535Oct 23, 2026
Last change-2vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WMT $120.00 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. 1,5477730 2026-10-09: 1,544 OI2026-10-12: 1,547 OI2026-10-14: 1,547 OI2026-10-15: 1,547 OI2026-10-16: 1,537 OI2026-10-21: 1,537 OI2026-10-23: 1,535 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, 2026Viewing1,535-2
Oct 21, 20261,5370
Oct 16, 20261,537-10
Oct 15, 20261,5470
Oct 14, 20261,5470
Oct 12, 20261,547+3
Oct 09, 20261,544No prior observation