OITracker Cboe delayed data

Contract OI history

Back to W

Nov 20, 2026 EXPIRATION

W $72.50 Put

W261120P00072500

Latest saved OI635Oct 23, 2026
Last change-1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
W $72.50 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 6363180 2026-10-02: 635 OI2026-10-05: 635 OI2026-10-06: 635 OI2026-10-07: 635 OI2026-10-08: 635 OI2026-10-09: 635 OI2026-10-13: 636 OI2026-10-14: 636 OI2026-10-15: 636 OI2026-10-16: 636 OI2026-10-21: 636 OI2026-10-23: 635 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

W contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing635-1
Oct 21, 20266360
Oct 16, 20266360
Oct 15, 20266360
Oct 14, 20266360
Oct 13, 2026636+1
Oct 09, 20266350
Oct 08, 20266350
Oct 07, 20266350
Oct 06, 20266350
Oct 05, 20266350
Oct 02, 2026635No prior observation