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Contract OI history

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Apr 16, 2027 EXPIRATION

CIEN $270.00 Put

CIEN270416P00270000

Latest saved OI157Oct 23, 2026
Last change+97vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CIEN $270.00 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. 157780 2026-10-02: 44 OI2026-10-05: 44 OI2026-10-06: 45 OI2026-10-07: 45 OI2026-10-08: 45 OI2026-10-09: 51 OI2026-10-13: 51 OI2026-10-14: 51 OI2026-10-15: 60 OI2026-10-16: 60 OI2026-10-21: 60 OI2026-10-23: 157 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, 2026Viewing157+97
Oct 21, 2026600
Oct 16, 2026600
Oct 15, 202660+9
Oct 14, 2026510
Oct 13, 2026510
Oct 09, 202651+6
Oct 08, 2026450
Oct 07, 2026450
Oct 06, 202645+1
Oct 05, 2026440
Oct 02, 202644No prior observation