OITracker Cboe delayed data

Contract OI history

Back to KLAC

Mar 19, 2027 EXPIRATION

KLAC $170.00 Put

KLAC270319P00170000

Latest saved OI456Oct 23, 2026
Last change-1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
KLAC $170.00 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. 4572280 2026-10-09: 402 OI2026-10-13: 439 OI2026-10-14: 439 OI2026-10-15: 439 OI2026-10-16: 453 OI2026-10-21: 457 OI2026-10-23: 456 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, 2026Viewing456-1
Oct 21, 2026457+4
Oct 16, 2026453+14
Oct 15, 20264390
Oct 14, 20264390
Oct 13, 2026439+37
Oct 09, 2026402No prior observation