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Contract OI history

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Jun 17, 2027 EXPIRATION

KLAC $390.00 Call

KLAC270617C00390000

Latest saved OI1,275Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
KLAC $390.00 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. 1,2756370 2026-10-09: 1,269 OI2026-10-13: 1,269 OI2026-10-14: 1,269 OI2026-10-15: 1,269 OI2026-10-16: 1,272 OI2026-10-21: 1,275 OI2026-10-23: 1,275 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, 2026Viewing1,2750
Oct 21, 20261,275+3
Oct 16, 20261,272+3
Oct 15, 20261,2690
Oct 14, 20261,2690
Oct 13, 20261,2690
Oct 09, 20261,269No prior observation