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Contract OI history

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Jan 21, 2028 EXPIRATION

ACHR $20.00 Call

ACHR280121C00020000

Latest saved OI9,275Oct 23, 2026
Last change+218vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ACHR $20.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 9,2754,6370 2026-10-02: 8,454 OI2026-10-05: 8,640 OI2026-10-06: 8,651 OI2026-10-07: 8,677 OI2026-10-08: 8,677 OI2026-10-09: 8,860 OI2026-10-13: 8,968 OI2026-10-14: 8,968 OI2026-10-15: 8,906 OI2026-10-16: 8,928 OI2026-10-21: 9,057 OI2026-10-23: 9,275 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, 2026Viewing9,275+218
Oct 21, 20269,057+129
Oct 16, 20268,928+22
Oct 15, 20268,906-62
Oct 14, 20268,9680
Oct 13, 20268,968+108
Oct 09, 20268,860+183
Oct 08, 20268,6770
Oct 07, 20268,677+26
Oct 06, 20268,651+11
Oct 05, 20268,640+186
Oct 02, 20268,454No prior observation