OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

PCT $4.00 Put

PCT270115P00004000

Latest saved OI2,158Oct 23, 2026
Last change-1,943vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
PCT $4.00 put open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 4,1012,0500 2026-10-09: 3,469 OI2026-10-13: 4,027 OI2026-10-14: 4,087 OI2026-10-16: 4,087 OI2026-10-20: 4,101 OI2026-10-23: 2,158 OI Oct 09, 2026Oct 23, 2026

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

PCT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2,158-1,943
Oct 20, 20264,101+14
Oct 16, 20264,0870
Oct 14, 20264,087+60
Oct 13, 20264,027+558
Oct 09, 20263,469No prior observation