OITracker Cboe delayed data

Contract OI history

Back to OII

Nov 20, 2026 EXPIRATION

OII $40.00 Call

OII261120C00040000

Latest saved OI100Oct 23, 2026
Last change+95vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
OII $40.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 100500 2026-10-02: 2 OI2026-10-05: 2 OI2026-10-06: 6 OI2026-10-07: 6 OI2026-10-08: 6 OI2026-10-09: 8 OI2026-10-13: 8 OI2026-10-14: 8 OI2026-10-15: 5 OI2026-10-16: 5 OI2026-10-21: 5 OI2026-10-23: 100 OI Oct 02, 2026Oct 23, 2026

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

OII contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026100+95
Oct 21, 2026Viewing50
Oct 16, 202650
Oct 15, 20265-3
Oct 14, 202680
Oct 13, 202680
Oct 09, 20268+2
Oct 08, 202660
Oct 07, 202660
Oct 06, 20266+4
Oct 05, 202620
Oct 02, 20262No prior observation