OITracker Cboe delayed data

Contract OI history

Back to ON

Dec 18, 2026 EXPIRATION

ON $80.00 Put

ON261218P00080000

Latest saved OI1,570Oct 23, 2026
Last change-25vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ON $80.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 1,6978480 2026-10-09: 1,667 OI2026-10-13: 1,670 OI2026-10-14: 1,670 OI2026-10-15: 1,671 OI2026-10-16: 1,697 OI2026-10-21: 1,595 OI2026-10-23: 1,570 OI Oct 09, 2026Oct 23, 2026

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

ON contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,570-25
Oct 21, 20261,595-102
Oct 16, 20261,697+26
Oct 15, 20261,671+1
Oct 14, 20261,6700
Oct 13, 20261,670+3
Oct 09, 20261,667No prior observation