Is SenesTech, Inc. overvalued or undervalued?

As of 16 March 2023, the valuation grade for SenesTech, Inc. moved from does not qualify to risky, indicating a shift in perception regarding its financial health. The company appears to be overvalued, given its negative P/E ratio and concerning returns on capital and equity, which stand at -408.69% and -208.06%, respectively. Additionally, the price-to-book value is 1.74, while the EV to EBITDA and EV to EBIT are both negative at -0.61 and -0.60, respectively.
In comparison to its peers, SenesTech's valuation metrics are significantly weaker; for instance, Oil-Dri Corp. of America has a P/E ratio of 25.16, highlighting the disparity in financial performance. Other peers like LSB Industries, Inc. and Piedmont Lithium, Inc. also exhibit negative P/E ratios of -18.11 and -3.56, respectively, reinforcing the risky classification for SenesTech. Despite a strong year-to-date return of 41.69% compared to the S&P 500's 12.22%, the long-term performance shows a decline of 99.55% over three years, suggesting that the recent uptick may not be sustainable.