OITracker Cboe delayed data

Contract OI history

Back to AS

Nov 20, 2026 EXPIRATION

AS $27.50 Call

AS261120C00027500

Latest saved OI3,924Oct 23, 2026
Last change-509vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
AS $27.50 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. 7,4603,7300 2026-10-02: 5,086 OI2026-10-05: 7,445 OI2026-10-06: 7,447 OI2026-10-07: 7,447 OI2026-10-08: 7,447 OI2026-10-09: 7,460 OI2026-10-13: 7,339 OI2026-10-14: 7,339 OI2026-10-15: 7,351 OI2026-10-16: 6,077 OI2026-10-21: 4,433 OI2026-10-23: 3,924 OI Oct 02, 2026Oct 23, 2026

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

AS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing3,924-509
Oct 21, 20264,433-1,644
Oct 16, 20266,077-1,274
Oct 15, 20267,351+12
Oct 14, 20267,3390
Oct 13, 20267,339-121
Oct 09, 20267,460+13
Oct 08, 20267,4470
Oct 07, 20267,4470
Oct 06, 20267,447+2
Oct 05, 20267,445+2,359
Oct 02, 20265,086No prior observation