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Contract OI history

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Nov 20, 2026 EXPIRATION

CIEN $347.50 Call

CIEN261120C00347500

Latest saved OI26Oct 23, 2026
Last change+22vs previous saved observation
Saved market days2Oct 21, 2026 onwards
Daily open interest Hover a point for its date and OI
CIEN $347.50 call open interest history 2 saved observations from 2026-10-21 to 2026-10-23. Exact values and changes are listed in the table below. 26130 2026-10-21: 4 OI2026-10-23: 26 OI Oct 21, 2026Oct 23, 2026

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

CIEN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing26+22
Oct 21, 20264No prior observation