OITracker Cboe delayed data

Contract OI history

Back to ARMK

Dec 18, 2026 EXPIRATION

ARMK $65.00 Call

ARMK261218C00065000

Latest saved OI1,323Oct 23, 2026
Last change-2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ARMK $65.00 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. 1,3256620 2026-10-02: 1,323 OI2026-10-05: 1,323 OI2026-10-06: 1,323 OI2026-10-07: 1,325 OI2026-10-08: 1,325 OI2026-10-09: 1,325 OI2026-10-13: 1,325 OI2026-10-14: 1,325 OI2026-10-15: 1,325 OI2026-10-16: 1,325 OI2026-10-21: 1,325 OI2026-10-23: 1,323 OI Oct 02, 2026Oct 23, 2026

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

ARMK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,323-2
Oct 21, 20261,3250
Oct 16, 20261,3250
Oct 15, 20261,3250
Oct 14, 20261,3250
Oct 13, 20261,3250
Oct 09, 20261,3250
Oct 08, 20261,3250
Oct 07, 20261,325+2
Oct 06, 20261,3230
Oct 05, 20261,3230
Oct 02, 20261,323No prior observation