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Contract OI history

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Nov 20, 2026 EXPIRATION

CENX $35.00 Call

CENX261120C00035000

Latest saved OI1,279Oct 23, 2026
Last change+1,075vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
CENX $35.00 call open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 1,2796390 2026-10-08: 24 OI2026-10-09: 24 OI2026-10-13: 83 OI2026-10-14: 84 OI2026-10-16: 93 OI2026-10-21: 204 OI2026-10-23: 1,279 OI Oct 08, 2026Oct 23, 2026

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

CENX contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,279+1,075
Oct 21, 2026204+111
Oct 16, 202693+9
Oct 14, 202684+1
Oct 13, 202683+59
Oct 09, 2026240
Oct 08, 202624No prior observation