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Contract OI history

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Mar 19, 2027 EXPIRATION

KLAC $204.00 Call

KLAC270319C00204000

Latest saved OI178Oct 23, 2026
Last change+13vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
KLAC $204.00 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. 178890 2026-10-09: 156 OI2026-10-13: 159 OI2026-10-14: 159 OI2026-10-15: 159 OI2026-10-16: 159 OI2026-10-21: 165 OI2026-10-23: 178 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, 2026Viewing178+13
Oct 21, 2026165+6
Oct 16, 20261590
Oct 15, 20261590
Oct 14, 20261590
Oct 13, 2026159+3
Oct 09, 2026156No prior observation