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Contract OI history

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Nov 20, 2026 EXPIRATION

ALGM $50.00 Call

ALGM261120C00050000

Latest saved OI146Oct 23, 2026
Last change+20vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ALGM $50.00 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. 146730 2026-10-09: 124 OI2026-10-13: 124 OI2026-10-14: 124 OI2026-10-15: 124 OI2026-10-16: 124 OI2026-10-21: 126 OI2026-10-23: 146 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, 2026Viewing146+20
Oct 21, 2026126+2
Oct 16, 20261240
Oct 15, 20261240
Oct 14, 20261240
Oct 13, 20261240
Oct 09, 2026124No prior observation