Is Concrete Pumping Holdings, Inc. overvalued or undervalued?

As of 17 October 2025, the valuation grade for Concrete Pumping Holdings, Inc. has moved from attractive to very expensive. The company appears to be overvalued based on its current metrics. Key ratios include a P/E ratio of 20, an EV to EBITDA of 6.79, and a Price to Book Value of 1.10. In comparison, its peer LanzaTech Global, Inc. has a P/E ratio of -0.27, while Heliogen, Inc. boasts a more favorable valuation with a P/E of 0.21.
In terms of recent performance, Concrete Pumping Holdings, Inc. has underperformed relative to the S&P 500, with a year-to-date return of -2.70% compared to the S&P 500's 13.30%. This trend reinforces the notion that the stock may be overvalued given its current financial metrics and market performance.