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Contract OI history

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Dec 18, 2026 EXPIRATION

CIEN $350.00 Put

CIEN261218P00350000

Latest saved OI477Oct 23, 2026
Last change-6vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CIEN $350.00 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. 5042520 2026-10-02: 475 OI2026-10-05: 472 OI2026-10-06: 459 OI2026-10-07: 470 OI2026-10-08: 470 OI2026-10-09: 487 OI2026-10-13: 486 OI2026-10-14: 486 OI2026-10-15: 490 OI2026-10-16: 504 OI2026-10-21: 483 OI2026-10-23: 477 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, 2026Viewing477-6
Oct 21, 2026483-21
Oct 16, 2026504+14
Oct 15, 2026490+4
Oct 14, 20264860
Oct 13, 2026486-1
Oct 09, 2026487+17
Oct 08, 20264700
Oct 07, 2026470+11
Oct 06, 2026459-13
Oct 05, 2026472-3
Oct 02, 2026475No prior observation