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Contract OI history

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Oct 30, 2026 EXPIRATION

KLAC $175.00 Put

KLAC261030P00175000

Latest saved OI183Oct 23, 2026
Last change-5vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
KLAC $175.00 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. 188940 2026-10-09: 150 OI2026-10-13: 179 OI2026-10-14: 179 OI2026-10-15: 184 OI2026-10-16: 181 OI2026-10-21: 188 OI2026-10-23: 183 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, 2026Viewing183-5
Oct 21, 2026188+7
Oct 16, 2026181-3
Oct 15, 2026184+5
Oct 14, 20261790
Oct 13, 2026179+29
Oct 09, 2026150No prior observation