Stock comparison
AAOI vs CIEN
Applied Optoelectronics, Inc. and Ciena Corporation - both members of Networking / Optical.
AAOIUS
Applied Optoelectronics, Inc.
- Last close
- $100.24
- Market cap
- $8.0B
- Sector
- Information Technology
- 30d return
- -50.5%
- 90d return
- +4.9%
- 252d return
- -
CIENUS
Ciena Corporation
- Last close
- $388.81
- Market cap
- $55.0B
- Sector
- Information Technology
- 30d return
- -38.0%
- 90d return
- +32.2%
- 252d return
- -
252-day correlation
0.50moderate
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
Themes
Want the full picture? AAOI stock page · CIEN stock page · full correlation matrix
Data refreshes daily. Last close 2026-07-16.