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Contract OI history

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Jan 19, 2029 EXPIRATION

ACHR $10.00 Put

ACHR290119P00010000

Latest saved OI377Oct 23, 2026
Last change+1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ACHR $10.00 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. 3771880 2026-10-02: 131 OI2026-10-05: 136 OI2026-10-06: 136 OI2026-10-07: 137 OI2026-10-08: 137 OI2026-10-09: 375 OI2026-10-13: 375 OI2026-10-14: 375 OI2026-10-15: 375 OI2026-10-16: 376 OI2026-10-21: 376 OI2026-10-23: 377 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, 2026Viewing377+1
Oct 21, 20263760
Oct 16, 2026376+1
Oct 15, 20263750
Oct 14, 20263750
Oct 13, 20263750
Oct 09, 2026375+238
Oct 08, 20261370
Oct 07, 2026137+1
Oct 06, 20261360
Oct 05, 2026136+5
Oct 02, 2026131No prior observation