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Contract OI history

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Jan 15, 2027 EXPIRATION

ACHR $4.00 Put

ACHR270115P00004000

Latest saved OI6,953Oct 23, 2026
Last change+14vs 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. 7,4433,7210 2026-10-02: 6,823 OI2026-10-05: 6,786 OI2026-10-06: 6,987 OI2026-10-07: 7,021 OI2026-10-08: 7,021 OI2026-10-09: 7,056 OI2026-10-13: 7,443 OI2026-10-14: 7,443 OI2026-10-15: 6,967 OI2026-10-16: 6,933 OI2026-10-21: 6,939 OI2026-10-23: 6,953 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, 2026Viewing6,953+14
Oct 21, 20266,939+6
Oct 16, 20266,933-34
Oct 15, 20266,967-476
Oct 14, 20267,4430
Oct 13, 20267,443+387
Oct 09, 20267,056+35
Oct 08, 20267,0210
Oct 07, 20267,021+34
Oct 06, 20266,987+201
Oct 05, 20266,786-37
Oct 02, 20266,823No prior observation