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Contract OI history

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Oct 23, 2026 EXPIRATION

CIEN $355.00 Put

CIEN261023P00355000

Latest saved OI203Oct 23, 2026
Last change+67vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CIEN $355.00 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. 2031010 2026-10-02: 15 OI2026-10-05: 15 OI2026-10-06: 18 OI2026-10-07: 20 OI2026-10-08: 20 OI2026-10-09: 22 OI2026-10-13: 45 OI2026-10-14: 45 OI2026-10-15: 46 OI2026-10-16: 116 OI2026-10-21: 136 OI2026-10-23: 203 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, 2026Viewing203+67
Oct 21, 2026136+20
Oct 16, 2026116+70
Oct 15, 202646+1
Oct 14, 2026450
Oct 13, 202645+23
Oct 09, 202622+2
Oct 08, 2026200
Oct 07, 202620+2
Oct 06, 202618+3
Oct 05, 2026150
Oct 02, 202615No prior observation