OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

NA $2.50 Put

NA261120P00002500

Latest saved OI59Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
NA $2.50 put open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 60300 2026-10-08: 59 OI2026-10-09: 59 OI2026-10-13: 60 OI2026-10-14: 60 OI2026-10-16: 60 OI2026-10-20: 59 OI2026-10-23: 59 OI Oct 08, 2026Oct 23, 2026

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

NA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing590
Oct 20, 202659-1
Oct 16, 2026600
Oct 14, 2026600
Oct 13, 202660+1
Oct 09, 2026590
Oct 08, 202659No prior observation