Both in Semiconductor Manufacturing Equipment

ACM Research vs Sono-Tek

Over the past year ACMR returned +9.7% and SOTK returned +6.4%; their daily moves had a correlation of 0.21.

ACMR +9.7% SOTK +6.4%Growth of $1, one year, split-adjusted
MetricACMRSOTK
Price$45.47$4.81
Market cap$3.17B$75.8M
Today−7.75%−7.50%
1 month−45.6%−17.4%
6 months−12.8%−7.1%
Year to date+15.3%+16.5%
1 year+7.8%+1.7%
Revenue growth (YoY)+36.0%+1.3%
Gross margin46.0%52.9%
Net margin30.4%7.0%
P/E (TTM)21.1×37.8×
Price / sales3.1×3.5×
Net cash$733.4M$17.8M
Dividend yield——
Volatility (60d)70.2%72.4%
Short % of float6.0%0.5%
Next earnings——

Shading marks the stronger figure where one clearly exists (lower is better for valuation and volatility).