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Contract OI history

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Mar 19, 2027 EXPIRATION

CHYM $22.50 Put

CHYM270319P00022500

Latest saved OI1,001Oct 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 $22.50 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. 1,0205100 2026-10-09: 1,020 OI2026-10-13: 1,016 OI2026-10-14: 1,011 OI2026-10-15: 1,002 OI2026-10-16: 1,002 OI2026-10-21: 1,001 OI2026-10-23: 1,001 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, 2026Viewing1,0010
Oct 21, 20261,001-1
Oct 16, 20261,0020
Oct 15, 20261,002-9
Oct 14, 20261,011-5
Oct 13, 20261,016-4
Oct 09, 20261,020No prior observation