Is Renishaw plc (LSE:RSW) A Buy At Its Current Price?

Renishaw plc (LSE:RSW) trades with a trailing P/E of 33.6x, which is lower than the industry average of 12.3x. While RSW might seem like an attractive stock to buy, it is important to understand the assumptions behind the P/E ratio before you make any investment decisions. Today, I will break down what the P/E ratio is, how to interpret it and what to watch out for. See our latest analysis for RSW

Breaking down the Price-Earnings ratio

LSE:RSW PE PEG Gauge Sep 21st 17
LSE:RSW PE PEG Gauge Sep 21st 17

P/E is a popular ratio used for relative valuation. It compares a stock’s price per share to the stock’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 pound of the company’s earnings.

Formula

Price-Earnings Ratio = Price per share ÷ Earnings per share

P/E Calculation for RSW

Price per share = 47.51

Earnings per share = 1.413

∴ Price-Earnings Ratio = 47.51 ÷ 1.413 = 33.6x

The P/E ratio itself doesn’t tell you a lot; however, it becomes very insightful when you compare it with other similar companies. We preferably want to compare the stock’s P/E ratio to the average of companies that have similar features to RSW, such as capital structure and profitability. A quick method of creating a peer group is to use companies in the same industry, which is what I will do. Since similar companies should technically have similar P/E ratios, we can very quickly come to some conclusions about the stock if the ratios differ.

Since RSW's P/E of 33.6x is higher than its industry peers (12.3x), it means that investors are paying more than they should for each dollar of RSW's earnings. Therefore, according to this analysis, RSW is an over-priced stock.

Assumptions to watch out for

However, before you rush out to buy RSW, it is important to note that this conclusion is based on two key assumptions. The first is that our peer group actually contains companies that are similar to RSW. If this isn’t the case, the difference in P/E could be due to some other factors. For example, if you accidentally compared higher growth firms with RSW, then RSW’s P/E would naturally be lower since investors would reward its peers’ higher growth with a higher price. Alternatively, if you inadvertently compared less risky firms with RSW, RSW’s P/E would again be lower since investors would reward its peers’ lower risk with a higher price as well. The second assumption that must hold true is that the stocks we are comparing RSW to are fairly valued by the market. If this does not hold, there is a possibility that RSW’s P/E is lower because firms in our peer group are being overvalued by the market.

LSE:RSW Future Profit Sep 21st 17
LSE:RSW Future Profit Sep 21st 17

What this means for you:

Are you a shareholder? If your personal research into the stock confirms what the P/E ratio is telling you, it might be a good time to add more of RSW to your portfolio. But keep in mind that the usefulness of relative valuation depends on whether you are comfortable with making the assumptions I mentioned above.

Are you a potential investor? If you are considering investing in RSW, 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 Renishaw 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.

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