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Contract OI history

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Dec 18, 2026 EXPIRATION

CHYM $27.50 Call

CHYM261218C00027500

Latest saved OI386Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CHYM $27.50 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. 4352170 2026-10-09: 435 OI2026-10-13: 385 OI2026-10-14: 385 OI2026-10-15: 386 OI2026-10-16: 386 OI2026-10-21: 386 OI2026-10-23: 386 OI Oct 09, 2026Oct 23, 2026

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

CHYM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing3860
Oct 21, 20263860
Oct 16, 20263860
Oct 15, 2026386+1
Oct 14, 20263850
Oct 13, 2026385-50
Oct 09, 2026435No prior observation