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Contract OI history

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Nov 20, 2026 EXPIRATION

CIEN $250.00 Put

CIEN261120P00250000

Latest saved OI100Oct 23, 2026
Last change+40vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CIEN $250.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 100500 2026-10-02: 32 OI2026-10-05: 32 OI2026-10-06: 23 OI2026-10-07: 23 OI2026-10-08: 23 OI2026-10-09: 23 OI2026-10-13: 23 OI2026-10-14: 23 OI2026-10-15: 24 OI2026-10-16: 34 OI2026-10-21: 60 OI2026-10-23: 100 OI Oct 02, 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, 2026Viewing100+40
Oct 21, 202660+26
Oct 16, 202634+10
Oct 15, 202624+1
Oct 14, 2026230
Oct 13, 2026230
Oct 09, 2026230
Oct 08, 2026230
Oct 07, 2026230
Oct 06, 202623-9
Oct 05, 2026320
Oct 02, 202632No prior observation