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Contract OI history

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Jun 17, 2027 EXPIRATION

CIEN $290.00 Put

CIEN270617P00290000

Latest saved OI234Oct 23, 2026
Last change+23vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CIEN $290.00 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. 2341170 2026-10-02: 144 OI2026-10-05: 146 OI2026-10-06: 146 OI2026-10-07: 146 OI2026-10-08: 146 OI2026-10-09: 146 OI2026-10-13: 146 OI2026-10-14: 146 OI2026-10-15: 146 OI2026-10-16: 196 OI2026-10-21: 211 OI2026-10-23: 234 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, 2026Viewing234+23
Oct 21, 2026211+15
Oct 16, 2026196+50
Oct 15, 20261460
Oct 14, 20261460
Oct 13, 20261460
Oct 09, 20261460
Oct 08, 20261460
Oct 07, 20261460
Oct 06, 20261460
Oct 05, 2026146+2
Oct 02, 2026144No prior observation