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Contract OI history

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Nov 20, 2026 EXPIRATION

KLAC $186.00 Put

KLAC261120P00186000

Latest saved OI243Oct 23, 2026
Last change-2vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
KLAC $186.00 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. 2461230 2026-10-09: 246 OI2026-10-13: 245 OI2026-10-14: 245 OI2026-10-15: 245 OI2026-10-16: 245 OI2026-10-21: 245 OI2026-10-23: 243 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, 2026Viewing243-2
Oct 21, 20262450
Oct 16, 20262450
Oct 15, 20262450
Oct 14, 20262450
Oct 13, 2026245-1
Oct 09, 2026246No prior observation