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Contract OI history

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Nov 20, 2026 EXPIRATION

ALGM $35.00 Put

ALGM261120P00035000

Latest saved OI585Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ALGM $35.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 6143070 2026-10-09: 614 OI2026-10-13: 559 OI2026-10-14: 559 OI2026-10-15: 571 OI2026-10-16: 583 OI2026-10-21: 585 OI2026-10-23: 585 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, 2026Viewing5850
Oct 21, 2026585+2
Oct 16, 2026583+12
Oct 15, 2026571+12
Oct 14, 20265590
Oct 13, 2026559-55
Oct 09, 2026614No prior observation