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Contract OI history

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Nov 20, 2026 EXPIRATION

WM $185.00 Put

WM261120P00185000

Latest saved OI335Oct 23, 2026
Last change-22vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WM $185.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 3571780 2026-10-02: 87 OI2026-10-05: 118 OI2026-10-06: 218 OI2026-10-07: 217 OI2026-10-08: 217 OI2026-10-09: 221 OI2026-10-14: 351 OI2026-10-15: 353 OI2026-10-16: 344 OI2026-10-21: 357 OI2026-10-23: 335 OI Oct 02, 2026Oct 23, 2026

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

WM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing335-22
Oct 21, 2026357+13
Oct 16, 2026344-9
Oct 15, 2026353+2
Oct 14, 2026351+130
Oct 09, 2026221+4
Oct 08, 20262170
Oct 07, 2026217-1
Oct 06, 2026218+100
Oct 05, 2026118+31
Oct 02, 202687No prior observation