Is Orion SA overvalued or undervalued?

As of 17 October 2025, the valuation grade for Orion SA has moved from fair to very expensive, indicating a shift towards overvaluation. The company appears overvalued based on its P/E ratio of 7, which is significantly lower than the peer average of 8.01, and an EV to EBITDA ratio of 5.81, which is also below the industry benchmark. Additionally, the Price to Book Value stands at 1.37, suggesting that the market is pricing the stock higher than its book value.
In comparison to its peers, Tronox Holdings Plc has a P/E ratio of -3.44 and an EV to EBITDA of 10.37, while Green Plains, Inc. shows a P/E of -6.44 and an EV to EBITDA of 35.40, highlighting that Orion SA's valuation metrics are more favorable despite its current overvaluation status. Although return data is not available, the recent price movement from a high of 19.48 to a low of 5.23 suggests significant volatility, reinforcing the notion that the stock may not be a sound investment at its current price level.