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Contract OI history

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Mar 19, 2027 EXPIRATION

KLAC $300.00 Call

KLAC270319C00300000

Latest saved OI971Oct 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 $300.00 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 9714850 2026-10-09: 964 OI2026-10-13: 964 OI2026-10-14: 964 OI2026-10-15: 964 OI2026-10-16: 967 OI2026-10-21: 968 OI2026-10-23: 971 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, 2026Viewing971+3
Oct 21, 2026968+1
Oct 16, 2026967+3
Oct 15, 20269640
Oct 14, 20269640
Oct 13, 20269640
Oct 09, 2026964No prior observation