OITracker Cboe delayed data

Contract OI history

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Mar 19, 2027 EXPIRATION

ON $120.00 Call

ON270319C00120000

Latest saved OI520Oct 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 $120.00 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. 5802900 2026-10-09: 580 OI2026-10-13: 579 OI2026-10-14: 579 OI2026-10-15: 577 OI2026-10-16: 521 OI2026-10-21: 521 OI2026-10-23: 520 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, 2026Viewing520-1
Oct 21, 20265210
Oct 16, 2026521-56
Oct 15, 2026577-2
Oct 14, 20265790
Oct 13, 2026579-1
Oct 09, 2026580No prior observation