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Contract OI history

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Nov 06, 2026 EXPIRATION

KLAC $170.00 Put

KLAC261106P00170000

Latest saved OI139Oct 23, 2026
Last change+2vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
KLAC $170.00 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. 143710 2026-10-09: 130 OI2026-10-13: 143 OI2026-10-14: 143 OI2026-10-15: 143 OI2026-10-16: 140 OI2026-10-21: 137 OI2026-10-23: 139 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, 2026Viewing139+2
Oct 21, 2026137-3
Oct 16, 2026140-3
Oct 15, 20261430
Oct 14, 20261430
Oct 13, 2026143+13
Oct 09, 2026130No prior observation