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Contract OI history

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Jan 21, 2028 EXPIRATION

ACHR $7.00 Put

ACHR280121P00007000

Latest saved OI3,888Oct 23, 2026
Last change+313vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ACHR $7.00 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. 3,8881,9440 2026-10-02: 3,414 OI2026-10-05: 3,515 OI2026-10-06: 3,511 OI2026-10-07: 3,541 OI2026-10-08: 3,541 OI2026-10-09: 3,561 OI2026-10-13: 3,577 OI2026-10-14: 3,577 OI2026-10-15: 3,578 OI2026-10-16: 3,578 OI2026-10-21: 3,575 OI2026-10-23: 3,888 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, 2026Viewing3,888+313
Oct 21, 20263,575-3
Oct 16, 20263,5780
Oct 15, 20263,578+1
Oct 14, 20263,5770
Oct 13, 20263,577+16
Oct 09, 20263,561+20
Oct 08, 20263,5410
Oct 07, 20263,541+30
Oct 06, 20263,511-4
Oct 05, 20263,515+101
Oct 02, 20263,414No prior observation