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Contract OI history

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Dec 18, 2026 EXPIRATION

CG $30.00 Put

CG261218P00030000

Latest saved OI673Oct 23, 2026
Last change+1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CG $30.00 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. 6733360 2026-10-09: 638 OI2026-10-13: 638 OI2026-10-14: 667 OI2026-10-15: 667 OI2026-10-16: 667 OI2026-10-21: 672 OI2026-10-23: 673 OI Oct 09, 2026Oct 23, 2026

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

CG contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing673+1
Oct 21, 2026672+5
Oct 16, 20266670
Oct 15, 20266670
Oct 14, 2026667+29
Oct 13, 20266380
Oct 09, 2026638No prior observation