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Contract OI history

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Dec 17, 2027 EXPIRATION

ALNY $270.00 Put

ALNY271217P00270000

Latest saved OI187Oct 20, 2026
Last change0vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ALNY $270.00 put open interest history 6 saved observations from 2026-10-09 to 2026-10-20. Exact values and changes are listed in the table below. 187930 2026-10-09: 46 OI2026-10-13: 187 OI2026-10-14: 187 OI2026-10-15: 187 OI2026-10-16: 187 OI2026-10-20: 187 OI Oct 09, 2026Oct 20, 2026

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

ALNY contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing1870
Oct 16, 20261870
Oct 15, 20261870
Oct 14, 20261870
Oct 13, 2026187+141
Oct 09, 202646No prior observation