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Contract OI history

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Dec 18, 2026 EXPIRATION

AMAT $400.00 Put

AMAT261218P00400000

Latest saved OI2,049Oct 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 $400.00 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. 2,0491,0240 2026-10-09: 1,841 OI2026-10-13: 1,727 OI2026-10-14: 1,727 OI2026-10-15: 1,755 OI2026-10-16: 1,741 OI2026-10-21: 1,937 OI2026-10-23: 2,049 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, 2026Viewing2,049+112
Oct 21, 20261,937+196
Oct 16, 20261,741-14
Oct 15, 20261,755+28
Oct 14, 20261,7270
Oct 13, 20261,727-114
Oct 09, 20261,841No prior observation