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Contract OI history

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Oct 30, 2026 EXPIRATION

ACHR $4.50 Call

ACHR261030C00004500

Latest saved OI1,945Oct 23, 2026
Last change+327vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ACHR $4.50 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. 1,9459720 2026-10-02: 112 OI2026-10-05: 126 OI2026-10-06: 193 OI2026-10-07: 190 OI2026-10-08: 190 OI2026-10-09: 193 OI2026-10-13: 192 OI2026-10-14: 192 OI2026-10-15: 546 OI2026-10-16: 634 OI2026-10-21: 1,618 OI2026-10-23: 1,945 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, 2026Viewing1,945+327
Oct 21, 20261,618+984
Oct 16, 2026634+88
Oct 15, 2026546+354
Oct 14, 20261920
Oct 13, 2026192-1
Oct 09, 2026193+3
Oct 08, 20261900
Oct 07, 2026190-3
Oct 06, 2026193+67
Oct 05, 2026126+14
Oct 02, 2026112No prior observation