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Contract OI history

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Dec 18, 2026 EXPIRATION

AMAT $320.00 Put

AMAT261218P00320000

Latest saved OI531Oct 23, 2026
Last change+112vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
AMAT $320.00 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. 5312650 2026-10-09: 354 OI2026-10-13: 365 OI2026-10-14: 365 OI2026-10-15: 365 OI2026-10-16: 366 OI2026-10-21: 419 OI2026-10-23: 531 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

AMAT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing531+112
Oct 21, 2026419+53
Oct 16, 2026366+1
Oct 15, 20263650
Oct 14, 20263650
Oct 13, 2026365+11
Oct 09, 2026354No prior observation