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Contract OI history

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Nov 20, 2026 EXPIRATION

ALGM $32.50 Call

ALGM261120C00032500

Latest saved OI3,304Oct 23, 2026
Last change-159vs 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. 3,4631,7310 2026-10-09: 31 OI2026-10-13: 34 OI2026-10-14: 34 OI2026-10-15: 35 OI2026-10-16: 36 OI2026-10-21: 3,463 OI2026-10-23: 3,304 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, 2026Viewing3,304-159
Oct 21, 20263,463+3,427
Oct 16, 202636+1
Oct 15, 202635+1
Oct 14, 2026340
Oct 13, 202634+3
Oct 09, 202631No prior observation