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Contract OI history

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May 21, 2027 EXPIRATION

ALM $10.00 Put

ALM270521P00010000

Latest saved OI190Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ALM $10.00 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. 3151570 2026-10-09: 0 OI2026-10-13: 315 OI2026-10-14: 315 OI2026-10-15: 294 OI2026-10-16: 190 OI2026-10-21: 190 OI2026-10-23: 190 OI Oct 09, 2026Oct 23, 2026

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

ALM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1900
Oct 21, 20261900
Oct 16, 2026190-104
Oct 15, 2026294-21
Oct 14, 20263150
Oct 13, 2026315+315
Oct 09, 20260No prior observation