Both in Measuring Instruments

Birchtech vs Geospace Technologies

Over the past year BCHT returned −54.8% and GEOS returned −55.4%; their daily moves had a correlation of 0.90.

BCHT −54.8% GEOS −55.4%Growth of $1, one year, split-adjusted
MetricBCHTGEOS
Price$1.09$4.11
Market cap$28.5M$53.2M
Today−3.98%−6.80%
1 month−27.7%−14.4%
6 months—−55.1%
Year to date—−75.7%
1 year—−83.8%
Revenue growth (YoY)—−36.4%
Gross margin27.2%3.1%
Net margin−79.6%−61.4%
P/E (TTM)——
Price / sales—0.6×
Net cash$11.8M$2.8M
Dividend yield——
Volatility (60d)—46.0%
Short % of float0.3%2.5%
Next earnings——

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