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Contract OI history

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Oct 30, 2026 EXPIRATION

ALGN $145.00 Put

ALGN261030P00145000

Latest saved OI152Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ALGN $145.00 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. 152760 2026-10-09: 145 OI2026-10-13: 145 OI2026-10-14: 145 OI2026-10-15: 152 OI2026-10-16: 152 OI2026-10-21: 152 OI2026-10-23: 152 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, 2026Viewing1520
Oct 21, 20261520
Oct 16, 20261520
Oct 15, 2026152+7
Oct 14, 20261450
Oct 13, 20261450
Oct 09, 2026145No prior observation