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Contract OI history

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Oct 23, 2026 EXPIRATION

KLAC $190.00 Put

KLAC261023P00190000

Latest saved OI774Oct 23, 2026
Last change-163vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
KLAC $190.00 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. 9484740 2026-10-09: 935 OI2026-10-13: 946 OI2026-10-14: 946 OI2026-10-15: 948 OI2026-10-16: 943 OI2026-10-21: 937 OI2026-10-23: 774 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, 2026Viewing774-163
Oct 21, 2026937-6
Oct 16, 2026943-5
Oct 15, 2026948+2
Oct 14, 20269460
Oct 13, 2026946+11
Oct 09, 2026935No prior observation