OITracker Cboe delayed data

Contract OI history

Back to ARMK

Dec 18, 2026 EXPIRATION

ARMK $25.00 Put

ARMK261218P00025000

Latest saved OI4,737Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ARMK $25.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 4,7372,3680 2026-10-02: 4,737 OI2026-10-05: 4,737 OI2026-10-06: 4,737 OI2026-10-07: 4,737 OI2026-10-08: 4,737 OI2026-10-09: 4,737 OI2026-10-13: 4,737 OI2026-10-14: 4,737 OI2026-10-15: 4,737 OI2026-10-16: 4,737 OI2026-10-21: 4,737 OI2026-10-23: 4,737 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, 2026Viewing4,7370
Oct 21, 20264,7370
Oct 16, 20264,7370
Oct 15, 20264,7370
Oct 14, 20264,7370
Oct 13, 20264,7370
Oct 09, 20264,7370
Oct 08, 20264,7370
Oct 07, 20264,7370
Oct 06, 20264,7370
Oct 05, 20264,7370
Oct 02, 20264,737No prior observation