OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

ON $100.00 Call

ON261218C00100000

Latest saved OI335Oct 23, 2026
Last change-2vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ON $100.00 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. 3371680 2026-10-09: 322 OI2026-10-13: 326 OI2026-10-14: 326 OI2026-10-15: 323 OI2026-10-16: 323 OI2026-10-21: 337 OI2026-10-23: 335 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, 2026Viewing335-2
Oct 21, 2026337+14
Oct 16, 20263230
Oct 15, 2026323-3
Oct 14, 20263260
Oct 13, 2026326+4
Oct 09, 2026322No prior observation