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Contract OI history

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Oct 23, 2026 EXPIRATION

ALGN $130.00 Put

ALGN261023P00130000

Latest saved OI294Oct 23, 2026
Last change-1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ALGN $130.00 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. 3621810 2026-10-09: 362 OI2026-10-13: 362 OI2026-10-14: 292 OI2026-10-15: 295 OI2026-10-16: 295 OI2026-10-21: 295 OI2026-10-23: 294 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, 2026Viewing294-1
Oct 21, 20262950
Oct 16, 20262950
Oct 15, 2026295+3
Oct 14, 2026292-70
Oct 13, 20263620
Oct 09, 2026362No prior observation