Contract OI history

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Mar 19, 2027 EXPIRATION

KLAC $122.00 Put

KLAC270319P00122000

Latest saved OI773Oct 23, 2026
Last change+220vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
KLAC $122.00 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. 7733860 2026-10-09: 540 OI2026-10-13: 540 OI2026-10-14: 540 OI2026-10-15: 553 OI2026-10-16: 553 OI2026-10-21: 553 OI2026-10-23: 773 OI Oct 09, 2026Oct 23, 2026

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

KLAC contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing773+220
Oct 21, 20265530
Oct 16, 20265530
Oct 15, 2026553+13
Oct 14, 20265400
Oct 13, 20265400
Oct 09, 2026540No prior observation