Here’s the irony of the situation: companies live and die by their stock price, yet for the most part they don’t actively participate in trading their stocks within the market. Companies receive money from the securities market only when they first sell a security to the public in the primary market, which is commonly referred to as an initial public offering (IPO). In the subsequent trading of these shares on the secondary market (what most refer to as “the stock market”), it is the regular investors buying and selling the stock who benefit from any appreciation in stock price.