OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

ON $75.00 Put

ON261120P00075000

Latest saved OI875Oct 23, 2026
Last change+2vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ON $75.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 8804400 2026-10-09: 605 OI2026-10-13: 880 OI2026-10-14: 880 OI2026-10-15: 878 OI2026-10-16: 868 OI2026-10-21: 873 OI2026-10-23: 875 OI Oct 09, 2026Oct 23, 2026

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

ON contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing875+2
Oct 21, 2026873+5
Oct 16, 2026868-10
Oct 15, 2026878-2
Oct 14, 20268800
Oct 13, 2026880+275
Oct 09, 2026605No prior observation