Is Mueller Industries, Inc. overvalued or undervalued?

As of 30 June 2025, the valuation grade for Mueller Industries, Inc. has moved from attractive to very attractive, indicating a strong improvement in its valuation outlook. The company is currently considered undervalued, supported by a P/E ratio of 16, a PEG ratio of 0.91, and an EV to EBITDA ratio of 11.22, which are favorable compared to its peers. For instance, RBC Bearings, Inc. has a much higher P/E of 48.57, while Gibraltar Industries, Inc. shows a lower EV to EBITDA of 9.60.
Mueller Industries has demonstrated impressive returns, outperforming the S&P 500 across multiple periods, with a remarkable 3-year return of 236.01% compared to the S&P 500's 70.41%. This performance reinforces the company's undervaluation narrative, suggesting that it may be an attractive investment opportunity in the industrial manufacturing sector.