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Contract OI history

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Jan 15, 2027 EXPIRATION

ACHR $20.00 Call

ACHR270115C00020000

Latest saved OI28,206Oct 23, 2026
Last change-15vs 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. 28,22114,1100 2026-10-02: 27,894 OI2026-10-05: 27,894 OI2026-10-06: 27,896 OI2026-10-07: 27,947 OI2026-10-08: 27,947 OI2026-10-09: 27,875 OI2026-10-13: 27,975 OI2026-10-14: 27,975 OI2026-10-15: 27,975 OI2026-10-16: 27,974 OI2026-10-21: 28,221 OI2026-10-23: 28,206 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, 2026Viewing28,206-15
Oct 21, 202628,221+247
Oct 16, 202627,974-1
Oct 15, 202627,9750
Oct 14, 202627,9750
Oct 13, 202627,975+100
Oct 09, 202627,875-72
Oct 08, 202627,9470
Oct 07, 202627,947+51
Oct 06, 202627,896+2
Oct 05, 202627,8940
Oct 02, 202627,894No prior observation