The companies can be classified using more than one criterion, i.e. through product or services, geographical location, sector, industry, etc. These classifications are discussed in detail as follows:
1. By Product/ Services.
The companies are placed in industries based on their principal business activities that form the source of the majority of their revenues or earnings. The industry represents a group of companies offering similar goods and services. A sector, on the other hand, is a group of related industries.
2. By Business Cycle Sensitivity.
a. The industries may be classified as cyclical or non-cyclical based on their sensitivity to the business cycles.
b. The performance of a cyclical industry is correlated with the performance of the economy as a whole. They usually witness a relatively high demand during expansion and lower ones during contractions. These industries generally have a very high operating leverage, characterized by a high fixed cost and low variable cost. These usually consist of durable and discretionary goods, such as home electronics.
c. Whereas, the performances of the companies belonging to non-cyclical industries are relatively independent of business cycles. These industries generally have a very stable demand over the business cycle. They mainly consist of consumable and non-discretionary items industry, such as healthcare and utilities.
d. The non-cyclical industry may be classified into two groups, i.e. the defensive industry and the growing industry.
e. A defensive industry is the one, where the revenues/profits are least affected by the fluctuations in economic activities. Examples of defensive industries are stapled consumer goods industries, the basic services industry, and the ones determined by regulations.
f. In growth industries, on the other hand, there are specific demand dynamics that override the broad economic factors. This sector generates growth regardless of the phase of the business cycle.
g. The economic downturns do affect all the companies in an economy. Thus, the cyclicality of an industry is not an absolute factor; some industries are considered just relatively more cyclical than others.
h. Countries across the world witness different stages of a business cycle at different times. Therefore, it is inappropriate to establish common industry benchmark values for all industries across different countries.
3. By Statistical Similarities
a. Here the industries are classified together based on the correlations of past returns. The main logic behind such grouping is that such correlated companies have the same drivers that result in growth, fall, business cycles, etc. of those companies.
b. This type of classification is done using Cluster Analysis or Clustering. It is a statistical technique of grouping together the data or companies in a cluster, having similar statistical characters.
4. Commercial Industry Classification System
4.1. GICS – Global Industry Classification Standard
a. GICS classification is based on the principal business activity followed by the companies.
b. It is basically a four-tier classification system. Under this classification, the economy is classified into 10 sectors. These 10 sectors are then classified into 24 industry groups, which are then classified into 68 industries. Finally, there are 154 sub-industries.
4.2. Russell Global Sectors
a. This classification system classifies the industries based on the goods and services produced by it.
b. Under this classification, the economy is divided into 9 sectors, having 32 sub-sectors. These sub-sectors are divided into 141 industries.
4.3. ICB – Industry Classification Benchmark
a. This classification system classifies the industries based on their primary source of revenue.
b. There is a four-tier classification under this system. 10 sectors are classified into 19 super-sectors, which are then classified into 41 sectors. Finally, there are 114 sub-sectors.
5. Broad Groupings of Major Sectors
a. Consumer Discretionary. This is a very diverse sector, having categories ranging from durable goods to non-durable goods and luxury sector, etc. Some of the examples of this sector are the automobile industry, hospitality industry, apparels, FMGC, etc.
b. Consumer Staples (Non-Discretionary). This sector includes consumer goods with less long-term durability. Some of the examples of this sector are food, beverage, personal care products, etc.
c. Energy Sector. This sector relates to companies that produce or supply energy. This sector includes the companies involved in exploration, production, refining, etc of resources or providing services to such companies.
d. Financial Services. This sector involves companies providing financial services to commercial or retail customers. Some of the examples of this sector are banking, insurance, asset management companies, etc.
e. Healthcare Sector. This sector includes the companies that are involved in the production of goods and services related to healthcare. Some of the examples of this sector are the companies engaged in the production of biotech, pharmaceuticals, medical devices, etc.
f. Basic Material and Processing. This sector includes the companies engaged in the production of building materials, chemicals, forest products, etc.
g. Industrial/ Producer Durable Sector. This sector includes the companies involved in the production of goods with longer shelf life and that are used in the production of other goods and services. Heavy machinery, aerospace, defense equipment, transportation goods, etc. are produced by this sector.
h. Technology Sector. This sector includes the companies involved in research and development and production of technology-based goods and services. Some of the examples of this sector are computer, software, internet service provider companies, etc.
i. Telecommunication Sector. This sector includes the companies involved in the provision of fixed-line and wireless services.
j. Utilities. This sector involves the companies providing utilities such as gas and power.
6. Government-Industry Classification System
There is a government-industry classification system for industries in almost each of the countries. And, there is international classification as well. Some of the most common classification systems are:
a. ISIC – International Standard Industrial Classification. This is a classification system for all economic activities notified by the United Nations, based on primary business activities.
b. NACE – nomenclature statistique des activités économiques dansla Communauté européenne. It is an industrial classification system used by the European Union for the classification of all economic activities in the European Community.
c. ANZSIC – Australian & New Zealand Standard Industrial Classification. It is an industrial classification system used in Australia and New Zealand.
d. NAICS – North American Industrial Classification System. It is an industrial classification system used in North America.
7. Advantages of Using Commercial Classification System Over Government Classification System
The main advantages of using the commercial classification system over the government system are:
a. Government systems do not disclose information about specific businesses;
b. The commercial systems get reviewed and updated more frequently;
c. The government systems do not distinguish between small and large businesses, between profit and not-for-profit organizations, between public and private companies; whereas the commercial classifications only include for-profit and publicly traded companies.