OITracker Cboe delayed data

Contract OI history

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Mar 19, 2027 EXPIRATION

WM $150.00 Put

WM270319P00150000

Latest saved OI95Oct 23, 2026
Last change-28vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WM $150.00 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. 134670 2026-10-02: 134 OI2026-10-05: 132 OI2026-10-06: 132 OI2026-10-07: 132 OI2026-10-08: 132 OI2026-10-09: 132 OI2026-10-14: 127 OI2026-10-15: 127 OI2026-10-16: 125 OI2026-10-21: 123 OI2026-10-23: 95 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, 2026Viewing95-28
Oct 21, 2026123-2
Oct 16, 2026125-2
Oct 15, 20261270
Oct 14, 2026127-5
Oct 09, 20261320
Oct 08, 20261320
Oct 07, 20261320
Oct 06, 20261320
Oct 05, 2026132-2
Oct 02, 2026134No prior observation