Are CIEN and FN correlated?

CIEN and FN have a 252-day pairwise correlation of 0.70 (moderate). Values above 0.6 indicate the two stocks tend to move together as part of the same capital flow; below 0.4 they're largely independent.

Do CIEN and FN share any ETFs?

No ETF in QuantAbundance's coverage currently holds both CIEN and FN.

Which bubbles or themes do CIEN and FN share?

CIEN and FN share these AI-supercycle groupings: Networking / Optical (bubble), Photonics (theme).

Stock comparison

CIEN vs FN

Ciena Corporation and Fabrinet - both members of Networking / Optical.

CIENUS

Ciena Corporation

Last close: $358.43
Market cap: $50.8B
Sector: Information Technology
30d return: -17.0%
90d return: -35.0%
252d return: -

FNUS

Fabrinet

Last close: $398.36
Market cap: $14.3B
Sector: Information Technology
30d return: -30.3%
90d return: -44.7%
252d return: -

252-day correlation

0.70moderate

Pearson correlation of daily log-returns over the last 252 trading days. >0.6 = tight (move as one bloc); 0.4-0.6 = thematic linkage;<0.4 = largely independent. See the full matrix.

Shared context

Bubbles

Networking / Optical

Themes

Photonics

Want the full picture? CIEN stock page · FN stock page · full correlation matrix

Data refreshes daily. Last close 2026-09-24.