Why Does a Company Want to 'Go Public'?

When a company lists its shares on a public exchange, it will almost invariably look to issue additional new shares in order to raise extra capital at the same time. The money paid by investors for the newly-issued shares goes directly to the company (in contrast to a later trade of shares on the exchange, where the money passes between investors). An IPO, therefore, allows a company to tap a wide pool of stock market investors to provide it with large volumes of capital for future growth. The company is never required to repay the capital, but instead the new shareholders have a right to future profits distributed by the company.

The existing shareholders will see their shareholdings diluted as a proportion of the company's shares. However, they hope that the capital investment will make their shareholdings more valuable in absolute terms.

In addition, once a company is listed, it will be able to issue further shares via a rights issue, thereby again providing itself with capital for expansion without incurring any debt. This regular ability to raise large amounts of capital from the general market, rather than having to seek and negotiate with individual investors, is a key incentive for many companies seeking to list.