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Contract OI history

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Dec 18, 2026 EXPIRATION

CME $270.00 Put

CME261218P00270000

Latest saved OI364Oct 23, 2026
Last change-25vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CME $270.00 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. 3891940 2026-10-09: 324 OI2026-10-13: 324 OI2026-10-14: 324 OI2026-10-15: 336 OI2026-10-16: 335 OI2026-10-21: 389 OI2026-10-23: 364 OI Oct 09, 2026Oct 23, 2026

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

CME contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing364-25
Oct 21, 2026389+54
Oct 16, 2026335-1
Oct 15, 2026336+12
Oct 14, 20263240
Oct 13, 20263240
Oct 09, 2026324No prior observation