OITracker Cboe delayed data

Contract OI history

Back to WMT

Dec 15, 2028 EXPIRATION

WMT $55.00 Put

WMT281215P00055000

Latest saved OI260Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WMT $55.00 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. 2661330 2026-10-09: 117 OI2026-10-12: 117 OI2026-10-14: 117 OI2026-10-15: 263 OI2026-10-16: 266 OI2026-10-21: 260 OI2026-10-23: 260 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, 2026Viewing2600
Oct 21, 2026260-6
Oct 16, 2026266+3
Oct 15, 2026263+146
Oct 14, 20261170
Oct 12, 20261170
Oct 09, 2026117No prior observation