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Contract OI history

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Jun 17, 2027 EXPIRATION

ALM $17.50 Put

ALM270617P00017500

Latest saved OI1,838Oct 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 $17.50 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. 3,2031,6010 2026-10-09: 3,203 OI2026-10-13: 3,203 OI2026-10-14: 3,203 OI2026-10-15: 3,203 OI2026-10-16: 1,837 OI2026-10-21: 1,838 OI2026-10-23: 1,838 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, 2026Viewing1,8380
Oct 21, 20261,838+1
Oct 16, 20261,837-1,366
Oct 15, 20263,2030
Oct 14, 20263,2030
Oct 13, 20263,2030
Oct 09, 20263,203No prior observation