Industry Analysis for Investors

What is industry analysis?

Industry analysis is the study of the forces that make an entire sector more or less profitable, done before you judge any single company within it. The idea is that a company does not operate in a vacuum; it sits inside an industry whose structure sets the odds it plays against. Understanding those odds is the first step in analyzing any business.

The reason to start here is that industry structure often matters more than company quality. A well-run business in a brutally competitive industry, with thin margins and no pricing power, may struggle to earn a decent return no matter how good its management. An ordinary business in a favorable industry, protected from competition and able to charge fair prices, can do quietly well. Warren Buffett has put it memorably: when a manager with a reputation for brilliance takes on a business with a reputation for poor economics, it is usually the business whose reputation stays intact.

This article is the method overview. It covers the three core tools of industry analysis, the five forces that shape competition, the unit economics of a single sale, and the profit pools that show where money collects, and then points you to the sector-specific guides that apply these tools in detail. It is the how-to companion to the qualities examined in what makes a great business, moving the lens from the company to the industry around it.

The five forces in plain words

The most widely used tool for industry analysis is the five forces framework, developed by Michael Porter, which judges how much profit an industry is likely to allow by looking at five competitive pressures. In plain words, the framework asks how hard it is to make good money in this business and who is positioned to take that money away.

The five forces are these. Rivalry among existing competitors asks how fiercely the current players fight; intense price competition erodes everyone's profits. The threat of new entrants asks how easily newcomers can arrive; if barriers are low, any high profits attract a flood of competition. The threat of substitutes asks whether customers can meet their need another way entirely. Buyer power asks how much leverage customers have to demand lower prices. Supplier power asks how much leverage suppliers have to charge more.

An industry where all five forces are favorable, few strong rivals, high barriers to entry, no good substitutes, weak buyers, and weak suppliers, tends to be highly profitable and stable. An industry where all five are unfavorable tends to grind its participants down. Most industries sit somewhere between, and the point is to weigh the balance. The forces also explain where company-level moats come from, since high barriers to entry and weak buyer power are the industry-level roots of the advantages examined in identifying competitive advantages (moats).

Unit economics: is a single sale profitable?

Unit economics examine the revenue and costs of a single unit of a business, one sale, one customer, or one store, to reveal whether the core activity actually makes money once every true cost is counted. It is a discipline that cuts through impressive top-line growth to ask the more important question of whether that growth is profitable.

The classic trap is a business that loses money on each unit and hopes to make it up on volume. Growth that scales a profitable unit builds enormous value; growth that scales an unprofitable one just deepens the hole faster. Unit economics force the issue by isolating a single unit and loading it with all its real costs, including the ones companies like to exclude, such as the cost of acquiring the customer and serving them over time.

Consider a subscription business. The honest unit question is whether the lifetime revenue from a customer comfortably exceeds the cost of winning and serving that customer. If it costs $300 to acquire a customer who generates $500 of profit over their life, the unit economics work and growth is worth funding. If that customer generates only $200, every new sale destroys value, however fast revenue grows. This is the same lesson taught by the gap between headline sales and real profit, applied at the level of a single unit rather than the whole company.

Where the profit pools sit

Profit pools describe where along an industry's value chain the money actually collects, which is often not where the revenue or the attention is. Mapping the profit pool means asking, of all the players that touch a product on its way to the customer, which ones capture the profit and which merely handle volume.

The insight is that revenue and profit often sit in different places. In many industries, one stage of the chain, a component with no substitute, a brand customers demand, a network everyone must use, captures the bulk of the profit, while other stages do the heavy lifting for thin margins. In personal computers, for example, the makers of the machines have long earned modest margins while the makers of key components inside them earned far richer ones. The revenue flowed through the assemblers; the profit pooled around the scarce, hard-to-replace parts.

Finding the profit pool tells you which businesses in an industry are worth owning. A company positioned where the profit collects, holding the scarce or defensible stage of the chain, can earn high returns even in an otherwise ordinary industry. A company stuck in a commoditized stage struggles no matter how large it grows. This is also where industry structure meets the durability of returns, since a business sitting on a defensible profit pool has found a position worth protecting, the raw material of a lasting competitive advantage.

Reading industry cyclicality and change

Two further questions complete a picture of an industry: how much it swings with the economy, and how fast it is changing. Both determine how safely you can rely on today's profits continuing, and both can turn an apparently attractive industry into a treacherous one.

Cyclicality asks how sensitive the industry is to the economic cycle. Some industries, such as housing, autos, and heavy industry, boom and slump dramatically as the economy expands and contracts, which makes their profits hard to judge at any single moment. Others, such as utilities and consumer staples, barely move with the cycle. Knowing where an industry sits on this spectrum, a theme developed in understanding economic cycles, tells you how much to trust current earnings and how to think about a downturn.

Change asks how stable the industry's structure is. A settled industry with durable players is a very different investing proposition from one being reshaped by new technology or new business models, where today's leaders may be tomorrow's casualties. The faster an industry changes, the greater the risk that a strong position erodes, which ties directly to the disruption threat covered in understanding business risks. An industry can look highly profitable right up to the moment a new model makes its economics obsolete.

Where to go deeper: the sector guides

Industry analysis reaches its full value when you apply these tools to a specific sector, because every industry has its own economics, its own key metrics, and its own risks. The general framework tells you what questions to ask; the sector guides answer them for particular industries, where the numbers that matter differ sharply from one to the next.

A bank is not a software company, and neither resembles a retailer. To see the tools applied in detail, work through the sector-specific guides, starting with how to analyze a bank, where deposits, loans, and capital ratios drive everything; how to analyze a software company, where recurring revenue and retention rule; and how to analyze a retail business, where margins are thin and inventory and store economics decide the outcome. Each takes the five forces, unit economics, and profit pools and grounds them in the metrics that actually matter for that industry.

The habit worth building is to analyze the industry first and the company second. Once you understand the structure of the industry, the odds it sets, where its profits pool, and how it moves with the cycle, you are far better placed to judge whether a particular company within it is the durable compounder it appears to be, or a good business fighting a losing battle against its own industry.

Where to go from here

Industry analysis sets the odds you are playing against, and studying the five forces, unit economics, and profit pools before you judge a company is one of the highest-value habits in investing. From here, pick the sector guide above that fits the company you are studying, then bring the lens back to the individual business and its durability in how to identify high-quality businesses. To start comparing companies within one industry, open the Tenet comparison tool and line up a few competitors side by side.