OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

WM $210.00 Put

WM270115P00210000

Latest saved OI636Oct 23, 2026
Last change+193vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WM $210.00 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. 6363180 2026-10-02: 383 OI2026-10-05: 383 OI2026-10-06: 384 OI2026-10-07: 394 OI2026-10-08: 394 OI2026-10-09: 401 OI2026-10-14: 400 OI2026-10-15: 402 OI2026-10-16: 426 OI2026-10-21: 443 OI2026-10-23: 636 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, 2026Viewing636+193
Oct 21, 2026443+17
Oct 16, 2026426+24
Oct 15, 2026402+2
Oct 14, 2026400-1
Oct 09, 2026401+7
Oct 08, 20263940
Oct 07, 2026394+10
Oct 06, 2026384+1
Oct 05, 20263830
Oct 02, 2026383No prior observation