OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

WM $200.00 Put

WM261120P00200000

Latest saved OI295Oct 23, 2026
Last change-70vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WM $200.00 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. 4332160 2026-10-02: 347 OI2026-10-05: 352 OI2026-10-06: 372 OI2026-10-07: 397 OI2026-10-08: 397 OI2026-10-09: 431 OI2026-10-14: 433 OI2026-10-15: 427 OI2026-10-16: 377 OI2026-10-21: 365 OI2026-10-23: 295 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, 2026295-70
Oct 21, 2026Viewing365-12
Oct 16, 2026377-50
Oct 15, 2026427-6
Oct 14, 2026433+2
Oct 09, 2026431+34
Oct 08, 20263970
Oct 07, 2026397+25
Oct 06, 2026372+20
Oct 05, 2026352+5
Oct 02, 2026347No prior observation