OITracker Cboe delayed data

Contract OI history

Back to ON

Mar 19, 2027 EXPIRATION

ON $80.00 Call

ON270319C00080000

Latest saved OI135Oct 23, 2026
Last change-4vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ON $80.00 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 171850 2026-10-09: 124 OI2026-10-13: 127 OI2026-10-14: 127 OI2026-10-15: 127 OI2026-10-16: 171 OI2026-10-21: 139 OI2026-10-23: 135 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, 2026Viewing135-4
Oct 21, 2026139-32
Oct 16, 2026171+44
Oct 15, 20261270
Oct 14, 20261270
Oct 13, 2026127+3
Oct 09, 2026124No prior observation