Market share





Market share, in strategic management and marketing, is the percentage or
proportion of the total available market or market segment that is being
serviced by a company.

It can be expressed as a company's sales revenue (from that market) divided
by the total sales revenue available in that market. It can also be
expressed as a company's unit sales volume (in a market) divided by the
total volume of units sold in that market.

Market share is one of the most common objectives used in business. (Other
objectives include return on investment (ROI), return on assets (ROA), and
target rate of profit). The main advantage of using market share is that it
abstracts from industry wide macroenvironmental variables such as the state
of the economy, or changes in tax policy.