Both in Measuring Instruments

Geospace Technologies vs Birchtech

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

GEOS −55.4% BCHT −54.8%Growth of $1, one year, split-adjusted
MetricGEOSBCHT
Price$4.11$1.09
Market cap$53.2M$28.5M
Today−6.80%−3.98%
1 month−14.4%−27.7%
6 months−55.1%—
Year to date−75.7%—
1 year−83.8%—
Revenue growth (YoY)−36.4%—
Gross margin3.1%27.2%
Net margin−61.4%−79.6%
P/E (TTM)——
Price / sales0.6×—
Net cash$2.8M$11.8M
Dividend yield——
Volatility (60d)46.0%—
Short % of float2.5%0.3%
Next earnings——

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