Investors should be encouraged by Concrete Pumping Holdings' (NASDAQ:BBCP) consistent growth in return on capital employed, which could persist in the future.

Concrete Pumping Holdings' (NASDAQ:BBCP) return on capital employed (ROCE) has risen by 27% over the past five years, despite capital employed remaining relatively flat. While this is positive, investors should be cautious as it may indicate a lack of internal growth opportunities. ROCE growth is a key trend to watch, as it indicates a compounding machine that can continually reinvest earnings into the business and generate higher returns.