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Contract OI history

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Nov 20, 2026 EXPIRATION

CENX $30.00 Call

CENX261120C00030000

Latest saved OI138Oct 23, 2026
Last change+98vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
CENX $30.00 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. 138690 2026-10-08: 21 OI2026-10-09: 23 OI2026-10-13: 23 OI2026-10-14: 23 OI2026-10-16: 57 OI2026-10-21: 40 OI2026-10-23: 138 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, 2026Viewing138+98
Oct 21, 202640-17
Oct 16, 202657+34
Oct 14, 2026230
Oct 13, 2026230
Oct 09, 202623+2
Oct 08, 202621No prior observation