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Contract OI history

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Feb 19, 2027 EXPIRATION

ALGM $32.50 Put

ALGM270219P00032500

Latest saved OI1,056Oct 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 $32.50 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. 1,0565280 2026-10-09: 1,055 OI2026-10-13: 1,055 OI2026-10-14: 1,055 OI2026-10-15: 1,055 OI2026-10-16: 1,056 OI2026-10-21: 1,056 OI2026-10-23: 1,056 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, 2026Viewing1,0560
Oct 21, 20261,0560
Oct 16, 20261,056+1
Oct 15, 20261,0550
Oct 14, 20261,0550
Oct 13, 20261,0550
Oct 09, 20261,055No prior observation