Are AEHR and COHR correlated?

AEHR and COHR have a 252-day pairwise correlation of 0.67 (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 AEHR and COHR share any ETFs?

No ETF in QuantAbundance's coverage currently holds both AEHR and COHR.

Which bubbles or themes do AEHR and COHR share?

AEHR and COHR share these AI-supercycle groupings: Photonics (theme).

Stock comparison

AEHR vs COHR

Aehr Test Systems and Coherent Corp.

AEHRUS

Aehr Test Systems

Last close: $53.57
Market cap: $1.7B
Sector: Information Technology
30d return: -48.7%
90d return: -36.6%
252d return: -

COHRUS

Coherent Corp.

Last close: $192.81
Market cap: $38.0B
Sector: Information Technology
30d return: -34.8%
90d return: -47.7%
252d return: -

252-day correlation

0.67moderate

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

Themes

Photonics

Want the full picture? AEHR stock page · COHR stock page · full correlation matrix

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