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Contract OI history

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Dec 18, 2026 EXPIRATION

CHYM $37.50 Call

CHYM261218C00037500

Latest saved OI264Oct 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
CHYM $37.50 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. 2641320 2026-10-09: 253 OI2026-10-13: 253 OI2026-10-14: 253 OI2026-10-15: 253 OI2026-10-16: 253 OI2026-10-21: 263 OI2026-10-23: 264 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, 2026Viewing264+1
Oct 21, 2026263+10
Oct 16, 20262530
Oct 15, 20262530
Oct 14, 20262530
Oct 13, 20262530
Oct 09, 2026253No prior observation