OITracker Cboe delayed data

Contract OI history

Back to ACHR

Jan 19, 2029 EXPIRATION

ACHR $4.00 Put

ACHR290119P00004000

Latest saved OI347Oct 23, 2026
Last change+53vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ACHR $4.00 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. 3471730 2026-10-02: 11 OI2026-10-05: 36 OI2026-10-06: 37 OI2026-10-07: 197 OI2026-10-08: 197 OI2026-10-09: 205 OI2026-10-13: 250 OI2026-10-14: 250 OI2026-10-15: 257 OI2026-10-16: 257 OI2026-10-21: 294 OI2026-10-23: 347 OI Oct 02, 2026Oct 23, 2026

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

ACHR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing347+53
Oct 21, 2026294+37
Oct 16, 20262570
Oct 15, 2026257+7
Oct 14, 20262500
Oct 13, 2026250+45
Oct 09, 2026205+8
Oct 08, 20261970
Oct 07, 2026197+160
Oct 06, 202637+1
Oct 05, 202636+25
Oct 02, 202611No prior observation