Is Green Plains, Inc. overvalued or undervalued?

As of 8 May 2019, the valuation grade for Green Plains, Inc. has moved from very attractive to risky, indicating a significant deterioration in its financial outlook. The company is currently considered overvalued, particularly in light of its negative P/E ratio and troubling financial metrics. Key ratios include a Price to Book Value of 0.39, an EV to EBITDA of 22.56, and a ROCE of -4.51%, all of which suggest underlying challenges in profitability and valuation.
In comparison to its peers, Green Plains, Inc. stands out negatively; for instance, Cabot Corp. has a P/E of 8.37 and an EV to EBITDA of 6.36, while Quaker Houghton shows a P/E of 18.97 and an EV to EBITDA of 9.50. These comparisons highlight the relative weakness of Green Plains, which is not only struggling with losses but also lagging behind in terms of market performance. Additionally, the company's stock has underperformed significantly against the S&P 500, with a 1-year return of -62.87% compared to the index's 10.26%, reinforcing the notion of overvaluation amidst its current financial difficulties.