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Contract OI history

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Dec 18, 2026 EXPIRATION

CME $240.00 Put

CME261218P00240000

Latest saved OI449Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CME $240.00 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. 4492240 2026-10-09: 445 OI2026-10-13: 446 OI2026-10-14: 447 OI2026-10-15: 445 OI2026-10-16: 445 OI2026-10-21: 449 OI2026-10-23: 449 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, 2026Viewing4490
Oct 21, 2026449+4
Oct 16, 20264450
Oct 15, 2026445-2
Oct 14, 2026447+1
Oct 13, 2026446+1
Oct 09, 2026445No prior observation