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Contract OI history

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Oct 30, 2026 EXPIRATION

ACHR $2.50 Put

ACHR261030P00002500

Latest saved OI146Oct 23, 2026
Last change+6vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ACHR $2.50 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. 146730 2026-10-02: 0 OI2026-10-05: 0 OI2026-10-06: 0 OI2026-10-07: 0 OI2026-10-08: 0 OI2026-10-09: 0 OI2026-10-13: 95 OI2026-10-14: 95 OI2026-10-15: 115 OI2026-10-16: 115 OI2026-10-21: 140 OI2026-10-23: 146 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, 2026Viewing146+6
Oct 21, 2026140+25
Oct 16, 20261150
Oct 15, 2026115+20
Oct 14, 2026950
Oct 13, 202695+95
Oct 09, 202600
Oct 08, 202600
Oct 07, 202600
Oct 06, 202600
Oct 05, 202600
Oct 02, 20260No prior observation