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Contract OI history

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Oct 23, 2026 EXPIRATION

KLAC $165.00 Put

KLAC261023P00165000

Latest saved OI101Oct 23, 2026
Last change-183vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
KLAC $165.00 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. 2841420 2026-10-09: 139 OI2026-10-13: 153 OI2026-10-14: 153 OI2026-10-15: 173 OI2026-10-16: 178 OI2026-10-21: 284 OI2026-10-23: 101 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, 2026Viewing101-183
Oct 21, 2026284+106
Oct 16, 2026178+5
Oct 15, 2026173+20
Oct 14, 20261530
Oct 13, 2026153+14
Oct 09, 2026139No prior observation