OITracker Cboe delayed data

Contract OI history

Back to ECO

Dec 18, 2026 EXPIRATION

ECO $80.00 Put

ECO261218P00080000

Latest saved OI8Oct 23, 2026
Last change-1vs previous saved observation
Saved market days3Oct 16, 2026 onwards
Daily open interest Hover a point for its date and OI
ECO $80.00 put open interest history 3 saved observations from 2026-10-16 to 2026-10-23. Exact values and changes are listed in the table below. 940 2026-10-16: 2 OI2026-10-21: 9 OI2026-10-23: 8 OI Oct 16, 2026Oct 23, 2026

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

ECO contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing8-1
Oct 21, 20269+7
Oct 16, 20262No prior observation