Merger

What Is a Merger?

A merger is a deal in which two companies agree to combine into one business. Mergers are usually negotiated by the boards of directors of both firms. When the companies are similar in size, the deal is often called a "merger of equals." In many cases, however, one company is clearly the buyer, and the transaction works more like an acquisition, even if it is labeled a merger.

How Mergers Work

Mergers are typically structured in one of a few ways. In a cash deal, shareholders of the target company receive a fixed payment for each share they own. In a stock deal, they receive shares of the combined company instead, based on an agreed exchange ratio. Many transactions mix the two. Before a merger closes, it generally requires approval from each company's board, a shareholder vote, and clearance from government antitrust review authorities, who examine whether the combination would reduce competition.

Mergers are often grouped by the relationship between the companies:

• Horizontal mergers join direct competitors in the same industry.
• Vertical mergers join companies at different stages of the same supply chain.
• Conglomerate mergers join companies in unrelated businesses.

Why Mergers Matter to Investors

For shareholders, a merger can change the value of their holdings in several ways. Supporters usually argue that synergies, such as cost savings from combined operations or a wider product range, will make the combined company worth more than the two businesses were separately. However, issuing new shares can cause dilution of existing ownership, and the buyer may pay more than the target is worth. Integrating two organizations is also difficult, and research on mergers has found that many fail to deliver the gains their backers projected.

Announced deals often trade at a price slightly below the offer price. That gap reflects the market's view of the chance the deal will be completed. Investors who follow mergers often watch shareholder votes, regulatory decisions, and financing terms, since any of these can affect the outcome.