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Contract OI history

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Nov 20, 2026 EXPIRATION

ILMN $230.00 Put

ILMN261120P00230000

Latest saved OI342Oct 23, 2026
Last change-2vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ILMN $230.00 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. 3441720 2026-10-09: 275 OI2026-10-13: 277 OI2026-10-14: 282 OI2026-10-15: 283 OI2026-10-16: 330 OI2026-10-21: 344 OI2026-10-23: 342 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, 2026Viewing342-2
Oct 21, 2026344+14
Oct 16, 2026330+47
Oct 15, 2026283+1
Oct 14, 2026282+5
Oct 13, 2026277+2
Oct 09, 2026275No prior observation