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Contract OI history

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Dec 18, 2026 EXPIRATION

CHYM $17.50 Call

CHYM261218C00017500

Latest saved OI266Oct 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 $17.50 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. 2671330 2026-10-09: 267 OI2026-10-13: 266 OI2026-10-14: 266 OI2026-10-15: 266 OI2026-10-16: 266 OI2026-10-21: 266 OI2026-10-23: 266 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, 2026Viewing2660
Oct 21, 20262660
Oct 16, 20262660
Oct 15, 20262660
Oct 14, 20262660
Oct 13, 2026266-1
Oct 09, 2026267No prior observation