OITracker Cboe delayed data

Contract OI history

Back to ON

Dec 18, 2026 EXPIRATION

ON $45.00 Put

ON261218P00045000

Latest saved OI1,156Oct 23, 2026
Last change+1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ON $45.00 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. 1,1565780 2026-10-09: 1,155 OI2026-10-13: 1,155 OI2026-10-14: 1,155 OI2026-10-15: 1,155 OI2026-10-16: 1,155 OI2026-10-21: 1,155 OI2026-10-23: 1,156 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, 2026Viewing1,156+1
Oct 21, 20261,1550
Oct 16, 20261,1550
Oct 15, 20261,1550
Oct 14, 20261,1550
Oct 13, 20261,1550
Oct 09, 20261,155No prior observation