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Contract OI history

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Nov 20, 2026 EXPIRATION

ALGN $140.00 Put

ALGN261120P00140000

Latest saved OI1,107Oct 23, 2026
Last change-2vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ALGN $140.00 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. 1,1095540 2026-10-09: 112 OI2026-10-13: 1,103 OI2026-10-14: 1,108 OI2026-10-15: 1,108 OI2026-10-16: 1,108 OI2026-10-21: 1,109 OI2026-10-23: 1,107 OI Oct 09, 2026Oct 23, 2026

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

ALGN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,107-2
Oct 21, 20261,109+1
Oct 16, 20261,1080
Oct 15, 20261,1080
Oct 14, 20261,108+5
Oct 13, 20261,103+991
Oct 09, 2026112No prior observation