Is United States Antimony Corp. overvalued or undervalued?

As of 10 May 2023, the valuation grade for United States Antimony Corp. has moved from fair to risky, indicating a deterioration in its financial standing. The company appears to be overvalued given its negative profitability metrics, including a Price to Book Value of 12.31 and an EV to Sales ratio of 20.06, which suggest that investors are paying a premium despite the lack of earnings. Additionally, the company's ROCE stands at -13.51%, reflecting poor capital efficiency.
In comparison to its peers, United States Antimony Corp. has a significantly lower EV to EBITDA ratio of -383.30, while Haynes International, Inc. is considered expensive with an EV to EBITDA of 12.1074. Similarly, Nexa Resources SA is also classified as risky with an EV to EBITDA of 3.5779. Notably, United States Antimony Corp. has outperformed the S&P 500 across multiple time frames, with a year-to-date return of 232.77% compared to the S&P 500's 12.22%, but this strong performance does not mitigate its overvaluation concerns.