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Contract OI history

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Nov 20, 2026 EXPIRATION

AMGN $385.00 Put

AMGN261120P00385000

Latest saved OI416Oct 23, 2026
Last change-20vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
AMGN $385.00 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. 4362180 2026-10-09: 181 OI2026-10-13: 167 OI2026-10-14: 167 OI2026-10-15: 189 OI2026-10-16: 179 OI2026-10-21: 436 OI2026-10-23: 416 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, 2026Viewing416-20
Oct 21, 2026436+257
Oct 16, 2026179-10
Oct 15, 2026189+22
Oct 14, 20261670
Oct 13, 2026167-14
Oct 09, 2026181No prior observation