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Contract OI history

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Jan 21, 2028 EXPIRATION

AMAT $400.00 Put

AMAT280121P00400000

Latest saved OI1,624Oct 23, 2026
Last change+24vs 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. 1,6248120 2026-10-09: 1,497 OI2026-10-13: 1,503 OI2026-10-14: 1,503 OI2026-10-15: 1,503 OI2026-10-16: 1,514 OI2026-10-21: 1,600 OI2026-10-23: 1,624 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, 2026Viewing1,624+24
Oct 21, 20261,600+86
Oct 16, 20261,514+11
Oct 15, 20261,5030
Oct 14, 20261,5030
Oct 13, 20261,503+6
Oct 09, 20261,497No prior observation