OITracker Cboe delayed data

Contract OI history

Back to ARMK

Nov 20, 2026 EXPIRATION

ARMK $50.00 Put

ARMK261120P00050000

Latest saved OI25Oct 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 $50.00 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. 25120 2026-10-02: 2 OI2026-10-05: 2 OI2026-10-06: 4 OI2026-10-07: 4 OI2026-10-08: 4 OI2026-10-09: 10 OI2026-10-13: 15 OI2026-10-14: 15 OI2026-10-15: 15 OI2026-10-16: 15 OI2026-10-21: 25 OI2026-10-23: 25 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, 2026Viewing250
Oct 21, 202625+10
Oct 16, 2026150
Oct 15, 2026150
Oct 14, 2026150
Oct 13, 202615+5
Oct 09, 202610+6
Oct 08, 202640
Oct 07, 202640
Oct 06, 20264+2
Oct 05, 202620
Oct 02, 20262No prior observation