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Contract OI history

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Nov 20, 2026 EXPIRATION

CENX $45.00 Put

CENX261120P00045000

Latest saved OI530Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
CENX $45.00 put open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 5872930 2026-10-08: 587 OI2026-10-09: 587 OI2026-10-13: 587 OI2026-10-14: 587 OI2026-10-16: 530 OI2026-10-21: 530 OI2026-10-23: 530 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, 2026Viewing5300
Oct 21, 20265300
Oct 16, 2026530-57
Oct 14, 20265870
Oct 13, 20265870
Oct 09, 20265870
Oct 08, 2026587No prior observation