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Contract OI history

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Jan 21, 2028 EXPIRATION

KLAC $188.00 Call

KLAC280121C00188000

Latest saved OI312Oct 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 $188.00 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. 3121560 2026-10-09: 310 OI2026-10-13: 310 OI2026-10-14: 310 OI2026-10-15: 310 OI2026-10-16: 310 OI2026-10-21: 312 OI2026-10-23: 312 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, 2026Viewing3120
Oct 21, 2026312+2
Oct 16, 20263100
Oct 15, 20263100
Oct 14, 20263100
Oct 13, 20263100
Oct 09, 2026310No prior observation