OITracker Cboe delayed data

Contract OI history

Back to ONT

Dec 17, 2027 EXPIRATION

ONT $17.50 Call

ONT271217C00017500

Latest saved OI1,581Oct 23, 2026
Last change0vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ONT $17.50 call open interest history 10 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2,5001,2500 2026-10-02: 2,500 OI2026-10-05: 2,500 OI2026-10-06: 1,581 OI2026-10-07: 1,581 OI2026-10-09: 1,581 OI2026-10-13: 1,581 OI2026-10-14: 1,581 OI2026-10-16: 1,581 OI2026-10-20: 1,581 OI2026-10-23: 1,581 OI Oct 02, 2026Oct 23, 2026

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

ONT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,5810
Oct 20, 20261,5810
Oct 16, 20261,5810
Oct 14, 20261,5810
Oct 13, 20261,5810
Oct 09, 20261,5810
Oct 07, 20261,5810
Oct 06, 20261,581-919
Oct 05, 20262,5000
Oct 02, 20262,500No prior observation