OITracker Cboe delayed data

Contract OI history

Back to WM

Mar 19, 2027 EXPIRATION

WM $220.00 Call

WM270319C00220000

Latest saved OI209Oct 23, 2026
Last change-24vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WM $220.00 call open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2331160 2026-10-02: 205 OI2026-10-05: 221 OI2026-10-06: 225 OI2026-10-07: 226 OI2026-10-08: 226 OI2026-10-09: 227 OI2026-10-14: 224 OI2026-10-15: 220 OI2026-10-16: 221 OI2026-10-21: 233 OI2026-10-23: 209 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, 2026209-24
Oct 21, 2026Viewing233+12
Oct 16, 2026221+1
Oct 15, 2026220-4
Oct 14, 2026224-3
Oct 09, 2026227+1
Oct 08, 20262260
Oct 07, 2026226+1
Oct 06, 2026225+4
Oct 05, 2026221+16
Oct 02, 2026205No prior observation