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Contract OI history

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Nov 20, 2026 EXPIRATION

CENX $37.50 Call

CENX261120C00037500

Latest saved OI543Oct 23, 2026
Last change+1vs previous saved observation
Saved market days4Oct 14, 2026 onwards
Daily open interest Hover a point for its date and OI
CENX $37.50 call open interest history 4 saved observations from 2026-10-14 to 2026-10-23. Exact values and changes are listed in the table below. 5432710 2026-10-14: 0 OI2026-10-16: 16 OI2026-10-21: 542 OI2026-10-23: 543 OI Oct 14, 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, 2026Viewing543+1
Oct 21, 2026542+526
Oct 16, 202616+16
Oct 14, 20260No prior observation