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Contract OI history

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Nov 20, 2026 EXPIRATION

CERT $12.50 Call

CERT261120C00012500

Latest saved OI4,867Oct 23, 2026
Last change-57vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CERT $12.50 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. 4,9242,4620 2026-10-09: 4,824 OI2026-10-13: 4,824 OI2026-10-14: 4,824 OI2026-10-15: 4,824 OI2026-10-16: 4,924 OI2026-10-21: 4,924 OI2026-10-23: 4,867 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

CERT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing4,867-57
Oct 21, 20264,9240
Oct 16, 20264,924+100
Oct 15, 20264,8240
Oct 14, 20264,8240
Oct 13, 20264,8240
Oct 09, 20264,824No prior observation