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Contract OI history

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Nov 13, 2026 EXPIRATION

ACHR $4.00 Put

ACHR261113P00004000

Latest saved OI1,204Oct 23, 2026
Last change+247vs 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. 1,2046020 2026-10-02: 0 OI2026-10-05: 0 OI2026-10-06: 28 OI2026-10-07: 37 OI2026-10-08: 37 OI2026-10-09: 40 OI2026-10-13: 286 OI2026-10-14: 286 OI2026-10-15: 485 OI2026-10-16: 645 OI2026-10-21: 957 OI2026-10-23: 1,204 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, 2026Viewing1,204+247
Oct 21, 2026957+312
Oct 16, 2026645+160
Oct 15, 2026485+199
Oct 14, 20262860
Oct 13, 2026286+246
Oct 09, 202640+3
Oct 08, 2026370
Oct 07, 202637+9
Oct 06, 202628+28
Oct 05, 202600
Oct 02, 20260No prior observation