OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

CME $300.00 Call

CME280121C00300000

Latest saved OI367Oct 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
CME $300.00 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 3701850 2026-10-09: 309 OI2026-10-13: 364 OI2026-10-14: 369 OI2026-10-15: 370 OI2026-10-16: 366 OI2026-10-21: 369 OI2026-10-23: 367 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, 2026Viewing367-2
Oct 21, 2026369+3
Oct 16, 2026366-4
Oct 15, 2026370+1
Oct 14, 2026369+5
Oct 13, 2026364+55
Oct 09, 2026309No prior observation