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Contract OI history

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Jan 15, 2027 EXPIRATION

CIEN $400.00 Put

CIEN270115P00400000

Latest saved OI318Oct 23, 2026
Last change-25vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CIEN $400.00 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. 3461730 2026-10-02: 346 OI2026-10-05: 346 OI2026-10-06: 344 OI2026-10-07: 344 OI2026-10-08: 344 OI2026-10-09: 344 OI2026-10-13: 344 OI2026-10-14: 344 OI2026-10-15: 344 OI2026-10-16: 344 OI2026-10-21: 343 OI2026-10-23: 318 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, 2026Viewing318-25
Oct 21, 2026343-1
Oct 16, 20263440
Oct 15, 20263440
Oct 14, 20263440
Oct 13, 20263440
Oct 09, 20263440
Oct 08, 20263440
Oct 07, 20263440
Oct 06, 2026344-2
Oct 05, 20263460
Oct 02, 2026346No prior observation