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Contract OI history

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Sep 17, 2027 EXPIRATION

KLAC $110.00 Put

KLAC270917P00110000

Latest saved OI149Oct 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 $110.00 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. 149740 2026-10-09: 32 OI2026-10-13: 32 OI2026-10-14: 32 OI2026-10-15: 33 OI2026-10-16: 33 OI2026-10-21: 144 OI2026-10-23: 149 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, 2026Viewing149+5
Oct 21, 2026144+111
Oct 16, 2026330
Oct 15, 202633+1
Oct 14, 2026320
Oct 13, 2026320
Oct 09, 202632No prior observation