Market Shares

Money flow reflects the net cash bought or sold in a stock accumulated by investors. Since large investors have to invest monies in significant amounts in order to create new stock positions, it should be possible to track institutional purchases by measuring the volume and price trend of a stock. more »

The Herfindahl index (HI), also known as the concentration index, measures industry concentration by summing the squared market shares of the firms in the industry. It is commonly used to support antitrust claims. The index can be large or small, but decreases are indicative of a loss in pricing power and/or increased competition... more »

Connecticut-headquartered Pitney Bowes (NYSE: PBI) offers customer engagement, business insight, work flow management and integrated mail solutions to customers in more than 130 countries. Offerings include postage meters, mailing equipment, equipment financing, web-based marketing, print stream engineering and end-to-end mail... more »

In competitive markets, as opposed to those dominated by a few firms (oligopoly) or even just one (monopoly), it's important for businesspeople and investors to know how well companies or their products are doing relative to their competitors. Market share is one way to shed light on that relative performance. The basic idea of market... more »

Quality stocks, those listed on major exchanges, have proved to be a good investment during the past century, returning more than 10% per year on average even though there have been significant downturns in the market. Simply put stock is equity ownership in a company. The percentage of a company that you own is determined by the... more »