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Contract OI history

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Mar 19, 2027 EXPIRATION

KLAC $130.00 Put

KLAC270319P00130000

Latest saved OI303Oct 23, 2026
Last change+12vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
KLAC $130.00 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. 3031510 2026-10-09: 258 OI2026-10-13: 268 OI2026-10-14: 268 OI2026-10-15: 272 OI2026-10-16: 282 OI2026-10-21: 291 OI2026-10-23: 303 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, 2026Viewing303+12
Oct 21, 2026291+9
Oct 16, 2026282+10
Oct 15, 2026272+4
Oct 14, 20262680
Oct 13, 2026268+10
Oct 09, 2026258No prior observation