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Contract OI history

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Jan 15, 2027 EXPIRATION

ALGM $32.50 Call

ALGM270115C00032500

Latest saved OI1,021Oct 23, 2026
Last change+4vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ALGM $32.50 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 1,0215100 2026-10-09: 859 OI2026-10-13: 859 OI2026-10-14: 859 OI2026-10-15: 859 OI2026-10-16: 883 OI2026-10-21: 1,017 OI2026-10-23: 1,021 OI Oct 09, 2026Oct 23, 2026

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

ALGM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,021+4
Oct 21, 20261,017+134
Oct 16, 2026883+24
Oct 15, 20268590
Oct 14, 20268590
Oct 13, 20268590
Oct 09, 2026859No prior observation