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Contract OI history

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Jan 21, 2028 EXPIRATION

WMT $135.00 Put

WMT280121P00135000

Latest saved OI433Oct 23, 2026
Last change-19vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WMT $135.00 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. 4522260 2026-10-09: 146 OI2026-10-12: 146 OI2026-10-14: 146 OI2026-10-15: 146 OI2026-10-16: 452 OI2026-10-21: 452 OI2026-10-23: 433 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, 2026Viewing433-19
Oct 21, 20264520
Oct 16, 2026452+306
Oct 15, 20261460
Oct 14, 20261460
Oct 12, 20261460
Oct 09, 2026146No prior observation