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Contract OI history

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Nov 20, 2026 EXPIRATION

AMGN $390.00 Put

AMGN261120P00390000

Latest saved OI373Oct 23, 2026
Last change-2vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
AMGN $390.00 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. 3751870 2026-10-09: 138 OI2026-10-13: 193 OI2026-10-14: 193 OI2026-10-15: 202 OI2026-10-16: 219 OI2026-10-21: 375 OI2026-10-23: 373 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, 2026Viewing373-2
Oct 21, 2026375+156
Oct 16, 2026219+17
Oct 15, 2026202+9
Oct 14, 20261930
Oct 13, 2026193+55
Oct 09, 2026138No prior observation