Is NewMarket Corp. overvalued or undervalued?

As of 8 August 2025, the valuation grade for NewMarket Corp. has moved from very attractive to attractive, indicating a shift in its perceived value. The company appears to be fairly valued based on its current metrics. Key ratios include a P/E ratio of 13, an EV to EBITDA of 9.55, and a PEG ratio of 0.59, which suggest that the company is priced reasonably compared to its earnings growth potential.
In comparison to its peers, NewMarket Corp. has a lower P/E ratio than Westlake Corp. at 82.20 and a more favorable EV to EBITDA ratio compared to Albemarle Corp. at 26.19. The company's return performance has been strong, with a year-to-date return of 56.56% compared to the S&P 500's 12.22%, reinforcing its attractiveness in the market despite the recent decline in stock price over the past week.