- Firstly, P/E ratio is an outcome of market perception. While P/E ratio is calculated as Price/EPS, actually the market determines the P/E ratio to be attributed for a stock and the price is just the result of that.
- P/E Ratio by itself does not convey much unless it is also looked at with reference to growth. Here is where the dichotomy comes in. To calculate growth, past growth may be more reliable but has limited analytical value. The moment you shift to future growth, the issue of individual bias comes in.
- P/E only considers the equity aspect and not the debt capital, although they are equally important stakeholders. It just considers net profit as the residual income generated for equity shareholders.
- P/E can be tricky for loss-making companies and cyclical companies. Take the case of metals. When the metal cycle moves down, most steel and aluminum companies make losses as their costs are fixed. The question is; what to consider as a representative P/E ratio for the company? This is a major shortcoming of the P/E approach.
- We have already seen the concept of EV/EBITDA earlier. What the ratio represents is the payback period of a company acquisition. For example, when you acquire a company, you pay the market value of the equity and the debt and receive the cash in the books of the company. In return, you get a running business that is generating positive EBITDA. The ratio of EV / EBITDA, therefore, becomes a measure of your payback ratio; i.e. the number of years you will need to earn back the sum paid for the company in the form of operating profits. The role of market perception is much lesser in the case of EV/EBITDA.
- P/E is a good measure for the equity value of the company since it considers the residual profit (EPS) as the denominator. For a running business in a stable industry, the P/E ratio can be a good measure. But P/E cannot help in corporate finance decisions like expansions, diversifications, mergers and acquisitions. In such cases, it is EV/EBITDA that is more meaningful.
- P/E ratio works well in the case of manufacturing companies and where the business model is matured. EV/EBITDA works better in case of service companies and where the gestation is too long. For example, capital intensive sectors like telecom and sunrise sectors like Fintech, E-commerce can better use of EV/EBITDA as a measure of valuation.
- The thumb rule is that a company with a lower EV/EBITDA is more attractive. The condition is that the debt should not be high-cost debt and the equity must be fairly valued in the market. Also, the EBITDA margins should be predictable. The P/E ratio has to be linked to growth rate. A company with higher growth can justify higher P/E ratios.
- Also in the case of cyclical industries like metals and capital goods, the EV/EBITDA can be a better measure as the leverage and net profits are more vulnerable to business cycles and financial solvency. In such cases, the P/E becomes hard to standardize and actually gives absurd results during the peaks and troughs of the cycle.
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