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Contract OI history

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Jan 21, 2028 EXPIRATION

AMGN $380.00 Put

AMGN280121P00380000

Latest saved OI151Oct 23, 2026
Last change+67vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
AMGN $380.00 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. 151750 2026-10-09: 70 OI2026-10-13: 70 OI2026-10-14: 70 OI2026-10-15: 70 OI2026-10-16: 70 OI2026-10-21: 84 OI2026-10-23: 151 OI Oct 09, 2026Oct 23, 2026

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

AMGN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing151+67
Oct 21, 202684+14
Oct 16, 2026700
Oct 15, 2026700
Oct 14, 2026700
Oct 13, 2026700
Oct 09, 202670No prior observation