Investors in a company that are aiming to take over another one must determine whether the purchase will be beneficial to them. In order to do so, they must ask themselves how much the company being acquired is really worth.

Naturally, both sides of an M&A deal will have different ideas about the worth of a target company: its seller will tend to value the company at as high of a price as possible, while the buyer will try to get the lowest price that he can.

There are, however, many legitimate ways to value companies. The most common method is to look at comparable companies in an industry, but deal makers employ a variety of other methods and tools when assessing a target company. Here are just a few of them:

1. Comparative Ratios — The following are two examples of the many comparative metrics on which acquiring companies may base their offers:

• Price-Earnings Ratio (P/E Ratio) — With the use of this ratio, an acquiring company makes an offer that is a multiple of the earnings of the target company. Looking at the P/E for all the stocks within the same industry group will give the acquiring company good guidance for what the target’s P/E multiple should be.

Synergy: The Premium for Potential Success

For the most part, acquiring companies nearly always pay a substantial premium on the stock market value of the companies they buy. The justification for doing so nearly always boils down to the notion of synergy ; a merger benefits shareholders when a company’s post-merger share price increases by the value of potential synergy.

Let’s face it, it would be highly unlikely for rational owners to sell if they would benefit more by not selling. That means buyers will need to pay a premium if they hope to acquire the company, regardless of what pre-merger valuation tells them. For sellers, that premium represents their company’s future prospects. For buyers, the premium represents part of the post-merger synergy they expect can be achieved. The following equation offers a good way to think about synergy and how to determine whether a deal makes sense. The equation solves for the minimum required synergy:

In other words, the success of a merger is measured by whether the value of the buyer is enhanced by the action. However, the practical constraints of mergers, which we discuss in part five, often prevent the expected benefits from being fully achieved. Alas, the synergy promised by deal makers might just fall short.

What to Look For

It’s hard for investors to know when a deal is worthwhile. The burden of proof should fall on the acquiring company. To find mergers that have a chance of success, investors should start by looking for some of these simple criteria:

• Price-Earnings Ratio (P/E Ratio) — With the use of this ratio, an acquiring company makes an offer that is a multiple of the earnings of the target company. Looking at the P/E for all the stocks within the same industry group will give the acquiring company good guidance for what the target’s P/E multiple should be.


Mergers are awfully hard to get right, so investors should look for acquiring companies with a healthy grasp of reality. Mergers and Acquisitions: Doing The Deal