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Contract OI history

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Jan 15, 2027 EXPIRATION

ACMR $40.00 Call

ACMR270115C00040000

Latest saved OI1,127Oct 21, 2026
Last change-1vs previous saved observation
Saved market days5Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ACMR $40.00 call open interest history 5 saved observations from 2026-10-09 to 2026-10-21. Exact values and changes are listed in the table below. 1,1305650 2026-10-09: 1,130 OI2026-10-13: 1,130 OI2026-10-14: 1,130 OI2026-10-16: 1,128 OI2026-10-21: 1,127 OI Oct 09, 2026Oct 21, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

ACMR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 21, 2026Viewing1,127-1
Oct 16, 20261,128-2
Oct 14, 20261,1300
Oct 13, 20261,1300
Oct 09, 20261,130No prior observation