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Contract OI history

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Jan 15, 2027 EXPIRATION

KLAC $164.00 Put

KLAC270115P00164000

Latest saved OI575Oct 23, 2026
Last change+3vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
KLAC $164.00 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. 5752870 2026-10-09: 572 OI2026-10-13: 572 OI2026-10-14: 572 OI2026-10-15: 571 OI2026-10-16: 571 OI2026-10-21: 572 OI2026-10-23: 575 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, 2026Viewing575+3
Oct 21, 2026572+1
Oct 16, 20265710
Oct 15, 2026571-1
Oct 14, 20265720
Oct 13, 20265720
Oct 09, 2026572No prior observation