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Contract OI history

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Jan 21, 2028 EXPIRATION

ACHR $4.00 Call

ACHR280121C00004000

Latest saved OI4,825Oct 23, 2026
Last change+42vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ACHR $4.00 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. 4,8252,4120 2026-10-02: 3,933 OI2026-10-05: 3,923 OI2026-10-06: 3,965 OI2026-10-07: 4,037 OI2026-10-08: 4,037 OI2026-10-09: 4,159 OI2026-10-13: 4,378 OI2026-10-14: 4,378 OI2026-10-15: 4,573 OI2026-10-16: 4,744 OI2026-10-21: 4,783 OI2026-10-23: 4,825 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, 2026Viewing4,825+42
Oct 21, 20264,783+39
Oct 16, 20264,744+171
Oct 15, 20264,573+195
Oct 14, 20264,3780
Oct 13, 20264,378+219
Oct 09, 20264,159+122
Oct 08, 20264,0370
Oct 07, 20264,037+72
Oct 06, 20263,965+42
Oct 05, 20263,923-10
Oct 02, 20263,933No prior observation