OITracker Cboe delayed data

Contract OI history

Back to APH

Jan 21, 2028 EXPIRATION

APH $55.00 Put

APH280121P00055000

Latest saved OI154Oct 23, 2026
Last change+5vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
APH $55.00 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. 154770 2026-10-02: 146 OI2026-10-05: 146 OI2026-10-06: 148 OI2026-10-07: 148 OI2026-10-08: 148 OI2026-10-09: 148 OI2026-10-13: 149 OI2026-10-14: 149 OI2026-10-15: 149 OI2026-10-16: 149 OI2026-10-21: 149 OI2026-10-23: 154 OI Oct 02, 2026Oct 23, 2026

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

APH contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing154+5
Oct 21, 20261490
Oct 16, 20261490
Oct 15, 20261490
Oct 14, 20261490
Oct 13, 2026149+1
Oct 09, 20261480
Oct 08, 20261480
Oct 07, 20261480
Oct 06, 2026148+2
Oct 05, 20261460
Oct 02, 2026146No prior observation