OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

WM $190.00 Put

WM270115P00190000

Latest saved OI226Oct 23, 2026
Last change-2vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WM $190.00 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. 2341170 2026-10-02: 216 OI2026-10-05: 215 OI2026-10-06: 218 OI2026-10-07: 218 OI2026-10-08: 218 OI2026-10-09: 233 OI2026-10-14: 234 OI2026-10-15: 234 OI2026-10-16: 201 OI2026-10-21: 228 OI2026-10-23: 226 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, 2026226-2
Oct 21, 2026Viewing228+27
Oct 16, 2026201-33
Oct 15, 20262340
Oct 14, 2026234+1
Oct 09, 2026233+15
Oct 08, 20262180
Oct 07, 20262180
Oct 06, 2026218+3
Oct 05, 2026215-1
Oct 02, 2026216No prior observation