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Contract OI history

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Jan 21, 2028 EXPIRATION

CHYM $12.50 Put

CHYM280121P00012500

Latest saved OI126Oct 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 $12.50 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. 127630 2026-10-09: 127 OI2026-10-13: 127 OI2026-10-14: 127 OI2026-10-15: 127 OI2026-10-16: 127 OI2026-10-21: 127 OI2026-10-23: 126 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, 2026Viewing126-1
Oct 21, 20261270
Oct 16, 20261270
Oct 15, 20261270
Oct 14, 20261270
Oct 13, 20261270
Oct 09, 2026127No prior observation