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Contract OI history

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Jan 15, 2027 EXPIRATION

AMGN $400.00 Put

AMGN270115P00400000

Latest saved OI1,489Oct 23, 2026
Last change+38vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
AMGN $400.00 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. 1,4897440 2026-10-09: 204 OI2026-10-13: 1,390 OI2026-10-14: 1,390 OI2026-10-15: 1,401 OI2026-10-16: 1,416 OI2026-10-21: 1,451 OI2026-10-23: 1,489 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, 2026Viewing1,489+38
Oct 21, 20261,451+35
Oct 16, 20261,416+15
Oct 15, 20261,401+11
Oct 14, 20261,3900
Oct 13, 20261,390+1,186
Oct 09, 2026204No prior observation