Are AAOI and CIEN correlated?

AAOI and CIEN have a 252-day pairwise correlation of 0.60 (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 AAOI and CIEN share any ETFs?

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

Which bubbles or themes do AAOI and CIEN share?

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

Stock comparison

AAOI vs CIEN

Applied Optoelectronics, Inc. and Ciena Corporation - both members of Networking / Optical.

AAOIUS

Applied Optoelectronics, Inc.

Last close: $50.13
Market cap: $4.6B
Sector: Information Technology
30d return: -50.6%
90d return: -63.9%
252d return: -

CIENUS

Ciena Corporation

Last close: $243.39
Market cap: $34.5B
Sector: Information Technology
30d return: -31.8%
90d return: -47.4%
252d return: -

252-day correlation

0.60moderate

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? AAOI stock page · CIEN stock page · full correlation matrix

Data refreshes daily. Last close 2026-11-08.