OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

CNC $55.00 Put

CNC261218P00055000

Latest saved OI305Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CNC $55.00 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. 3071530 2026-10-02: 271 OI2026-10-05: 271 OI2026-10-06: 270 OI2026-10-07: 270 OI2026-10-08: 270 OI2026-10-09: 270 OI2026-10-13: 307 OI2026-10-14: 307 OI2026-10-15: 304 OI2026-10-16: 304 OI2026-10-21: 305 OI2026-10-23: 305 OI Oct 02, 2026Oct 23, 2026

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

CNC contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing3050
Oct 21, 2026305+1
Oct 16, 20263040
Oct 15, 2026304-3
Oct 14, 20263070
Oct 13, 2026307+37
Oct 09, 20262700
Oct 08, 20262700
Oct 07, 20262700
Oct 06, 2026270-1
Oct 05, 20262710
Oct 02, 2026271No prior observation