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# Does British & American Investment Trust plc’s (LSE:BAF) PE Ratio Warrant A Buy?

British & American Investment Trust plc (LSE:BAF) trades with a trailing P/E of 6.6x, which is lower than the industry average of 16.4x. Although some investors may jump to the conclusion that this is a great buying opportunity, understanding the assumptions behind the P/E ratio might change your mind. Today, I will deconstruct the P/E ratio and highlight what you need to be careful of when using the P/E ratio. Check out our latest analysis for British & American Investment Trust

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

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.

P/E Calculation for BAF

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

BAF Price-Earnings Ratio = 0.68 ÷ 0.103 = 6.6x

The P/E ratio isn’t a metric you view in isolation and only becomes useful when you compare it against other similar companies. We want to compare the stock’s P/E ratio to the average of companies that have similar characteristics as BAF, such as size and country of operation. A common peer group is companies that exist in the same industry, which is what I use. BAF’s P/E of 6.6x is lower than its industry peers (16.4x), which implies that each dollar of BAF’s earnings is being undervalued by investors. As such, our analysis shows that BAF represents an under-priced stock.

### Assumptions to watch out for

Before you jump to the conclusion that BAF is the perfect buying opportunity, it is important to realise that our conclusion rests on two assertions. The first is that our “similar companies” are actually similar to BAF, or else the difference in P/E might be a result of other factors. For example, if you compared lower risk firms with BAF, then investors would naturally value it at a lower price since it is a riskier investment. The second assumption that must hold true is that the stocks we are comparing BAF to are fairly valued by the market. If this does not hold true, BAF’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? 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 BAF 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 BAF, 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 British & American Investment Trust 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.