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Contract OI history

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Dec 18, 2026 EXPIRATION

CHYM $32.50 Put

CHYM261218P00032500

Latest saved OI222Oct 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 $32.50 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. 2221110 2026-10-09: 220 OI2026-10-13: 220 OI2026-10-14: 219 OI2026-10-15: 219 OI2026-10-16: 217 OI2026-10-21: 222 OI2026-10-23: 222 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, 2026Viewing2220
Oct 21, 2026222+5
Oct 16, 2026217-2
Oct 15, 20262190
Oct 14, 2026219-1
Oct 13, 20262200
Oct 09, 2026220No prior observation