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# At \$10.9, Is It Time To Buy Advanced Emissions Solutions Inc (ADES)?

Advanced Emissions Solutions Inc (NASDAQ:ADES) is trading with a trailing P/E of 2.4x, which is lower than the industry average of 25.8x. While this makes ADES appear like a great stock to buy, you might change your mind after I explain the assumptions behind the P/E ratio. In this article, I will deconstruct the P/E ratio and highlight what you need to be careful of when using the P/E ratio. See our latest analysis for ADES

### What you need to know about the P/E ratio

P/E is often used for relative valuation since earnings power is a chief driver of investment value. It compares a stockâ€™s price per share to the stockâ€™s earnings per share. A more intuitive way of understanding the P/E ratio is to think of it as how much investors are paying for each dollar of the companyâ€™s earnings.

P/E Calculation for ADES

Price-Earnings Ratio = Price per share Ã· Earnings per share

ADES Price-Earnings Ratio = 10.9 Ã· 4.526 = 2.4x

The P/E ratio isnâ€™t a metric you view in isolation and only becomes useful when you compare it against other similar companies. We preferably want to compare the stockâ€™s P/E ratio to the average of companies that have similar features to ADES, such as capital structure and profitability. One way of gathering a peer group is to use firms in the same industry, which is what Iâ€™ll do. At 2.4x, ADESâ€™s P/E is lower than its industry peers (25.8x). This implies that investors are undervaluing each dollar of ADESâ€™s earnings. As such, our analysis shows that ADES represents an under-priced stock.

### Assumptions to be aware of

However, before you rush out to buy ADES, it is important to note that this conclusion is based on two key assumptions. Firstly, our peer group contains companies that are similar to ADES. If this isnâ€™t the case, the difference in P/E could be due to other factors. For example, if you are comparing lower risk firms with ADES, then its P/E would naturally be lower than its peers, as investors would value those with lower risk at a higher price. The second assumption that must hold true is that the stocks we are comparing ADES to are fairly valued by the market. If this does not hold true, ADESâ€™s lower P/E ratio may be because firms in our peer group are overvalued by the market.

### What this means for you:

Are you a shareholder? You may have already conducted fundamental analysis on the stock as a shareholder, so its current undervaluation could signal a good buying opportunity to increase your exposure to ADES. Now that you understand the ins and outs of the PE metric, you should know to bear in mind its limitations before you make an investment decision.

Are you a potential investor? If you are considering investing in ADES, basing your decision on the PE metric at one point in time is certainly not sufficient. I recommend you do additional analysis by looking at its intrinsic valuation and using other relative valuation ratios like PEG or EV/EBITDA.

PE is one aspect of your portfolio construction to consider when holding or entering into a stock. But it is certainly not the only factor. Take a look at our most recent infographic report on Advanced Emissions Solutions for a more in-depth analysis of the stock to help you make a well-informed investment decision. Since we know a limitation of PE is it doesn't properly account for growth, you can use our free platform to see my list of stocks with a high growth potential and see if their PE is still reasonable.

To help readers see pass the short term volatility of the financial market, we aim to bring you a long-term focused research analysis purely driven by fundamental data. Note that our analysis does not factor in the latest price sensitive company announcements.

The author is an independent contributor and at the time of publication had no position in the stocks mentioned.