OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

CE $55.00 Put

CE261120P00055000

Latest saved OI16Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CE $55.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1780 2026-10-02: 6 OI2026-10-05: 6 OI2026-10-06: 6 OI2026-10-07: 6 OI2026-10-08: 6 OI2026-10-09: 7 OI2026-10-13: 7 OI2026-10-14: 17 OI2026-10-16: 17 OI2026-10-20: 16 OI2026-10-23: 16 OI Oct 02, 2026Oct 23, 2026

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

CE contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing160
Oct 20, 202616-1
Oct 16, 2026170
Oct 14, 202617+10
Oct 13, 202670
Oct 09, 20267+1
Oct 08, 202660
Oct 07, 202660
Oct 06, 202660
Oct 05, 202660
Oct 02, 20266No prior observation