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Contract OI history

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Dec 18, 2026 EXPIRATION

ILMN $175.00 Put

ILMN261218P00175000

Latest saved OI57Oct 23, 2026
Last change+15vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ILMN $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. 57280 2026-10-09: 35 OI2026-10-13: 35 OI2026-10-14: 41 OI2026-10-15: 41 OI2026-10-16: 41 OI2026-10-21: 42 OI2026-10-23: 57 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

ILMN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing57+15
Oct 21, 202642+1
Oct 16, 2026410
Oct 15, 2026410
Oct 14, 202641+6
Oct 13, 2026350
Oct 09, 202635No prior observation