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Contract OI history

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Oct 23, 2026 EXPIRATION

CIEN $402.50 Put

CIEN261023P00402500

Latest saved OI0Oct 23, 2026
Last change-8vs previous saved observation
Saved market days11Oct 05, 2026 onwards
Daily open interest Hover a point for its date and OI
CIEN $402.50 put open interest history 11 saved observations from 2026-10-05 to 2026-10-23. Exact values and changes are listed in the table below. 1360 2026-10-05: 0 OI2026-10-06: 5 OI2026-10-07: 5 OI2026-10-08: 5 OI2026-10-09: 11 OI2026-10-13: 13 OI2026-10-14: 13 OI2026-10-15: 13 OI2026-10-16: 13 OI2026-10-21: 8 OI2026-10-23: 0 OI Oct 05, 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, 2026Viewing0-8
Oct 21, 20268-5
Oct 16, 2026130
Oct 15, 2026130
Oct 14, 2026130
Oct 13, 202613+2
Oct 09, 202611+6
Oct 08, 202650
Oct 07, 202650
Oct 06, 20265+5
Oct 05, 20260No prior observation