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Contract OI history

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Dec 18, 2026 EXPIRATION

AMGN $420.00 Put

AMGN261218P00420000

Latest saved OI462Oct 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 $420.00 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. 4642320 2026-10-09: 366 OI2026-10-13: 367 OI2026-10-14: 367 OI2026-10-15: 367 OI2026-10-16: 370 OI2026-10-21: 464 OI2026-10-23: 462 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, 2026Viewing462-2
Oct 21, 2026464+94
Oct 16, 2026370+3
Oct 15, 20263670
Oct 14, 20263670
Oct 13, 2026367+1
Oct 09, 2026366No prior observation