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Contract OI history

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Nov 20, 2026 EXPIRATION

AMGN $395.00 Put

AMGN261120P00395000

Latest saved OI157Oct 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
AMGN $395.00 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. 163810 2026-10-09: 160 OI2026-10-13: 163 OI2026-10-14: 163 OI2026-10-15: 151 OI2026-10-16: 152 OI2026-10-21: 156 OI2026-10-23: 157 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, 2026Viewing157+1
Oct 21, 2026156+4
Oct 16, 2026152+1
Oct 15, 2026151-12
Oct 14, 20261630
Oct 13, 2026163+3
Oct 09, 2026160No prior observation