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Contract OI history

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Jan 15, 2027 EXPIRATION

CENX $37.00 Put

CENX270115P00037000

Latest saved OI539Oct 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 $37.00 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. 5392690 2026-10-08: 516 OI2026-10-09: 516 OI2026-10-13: 516 OI2026-10-14: 516 OI2026-10-16: 517 OI2026-10-21: 539 OI2026-10-23: 539 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, 2026Viewing5390
Oct 21, 2026539+22
Oct 16, 2026517+1
Oct 14, 20265160
Oct 13, 20265160
Oct 09, 20265160
Oct 08, 2026516No prior observation