What it means
Many companies reach a point in their core market where growth slows down. To keep expanding and protect themselves against industry-specific downturns, leaders often look at unrelated diversification.
This means buying or starting a business that operates in an entirely different sector, requiring new skills, supply chains, and customer bases. The main goal of this strategy is risk reduction.
If your primary industry suffers a major slump, having income from a completely different sector can keep the overall corporation stable. It is often described as not putting all your eggs in one basket.
Investors sometimes view this as a way to smooth out the business cycle, ensuring steady financial performance overall. However, this approach comes with significant challenges.
Because managers lack expertise in the new industry, they often struggle to make smart operational decisions. Instead of creating synergy, the parent company might find itself distracted, wasting time and capital trying to understand a market it knows nothing about.
In practice, successful execution requires hiring skilled leaders for the new division and giving them autonomy while maintaining strict financial oversight. Without careful planning, unrelated diversification can destroy shareholder value, draining resources from the profitable core business to prop up an underperforming sideline.
Imagine a farmer who only grows wheat. To protect against bad weather, instead of growing corn, they decide to buy a shoe shop.
Farming wheat and selling shoes have nothing in common, which sums up unrelated diversification.
In practice
Real-world examples
Example 1
A commercial bakery with $2,000,000 in annual revenue decides to purchase a commercial cleaning service, entering a completely different sector to diversify its income. The bakery's profits depend on wheat prices and consumer spending, while cleaning contracts are tied to office occupancy. The owner hopes that a downturn in one will be balanced by the other.
Example 2
A regional accountancy firm with $500,000 in turnover invests in a local fitness club, branching out beyond professional services to capture retail consumer spending. The partners know little about gym memberships or equipment, so they hire an experienced club manager. They also set clear financial reporting rules to monitor results each month.
Example 3
A heavy machinery manufacturer generating $15,000,000 buys a luxury boutique hotel chain, shifting capital into hospitality to balance its industrial revenue. Machinery sales swing with the investment cycle, while hotel revenue follows tourism. The group must now report two very different sets of performance measures to its board.
Think of it
Imagine a farmer who only grows wheat. To protect against bad weather, instead of growing corn, they decide to buy a shoe shop. Farming wheat and selling shoes have nothing in common, which sums up unrelated diversification.
Formula
Calculation
Risk of a two-business portfolio (variance) = (w1 x s1)^2 + (w2 x s2)^2 + 2 x w1 x w2 x r x s1 x s2
where w is the share of profit from each business, s is the volatility (standard deviation) of its profit, and r is the correlation between the two businesses (from -1 to +1).
Example 1:
A retail core business (80% of profit, volatility 10%) adds an unrelated technology business (20% of profit, volatility 20%). Their correlation is 0.25.
(0.8 x 10)^2 = 64
(0.2 x 20)^2 = 16
2 x 0.8 x 0.2 x 0.25 x 10 x 20 = 0.08 x 200 = 16
Variance = 64 + 16 + 16 = 96
Portfolio volatility = square root of 96 = about 9.8%
Example 2 (what the result means):
A simple weighted average of the two volatilities would be (0.8 x 10) + (0.2 x 20) = 12%. Because the two businesses do not move perfectly together, the combined volatility is only about 9.8%, which is lower than the core retail business alone at 10%.
If the correlation were 1.0, there would be no benefit: volatility would be exactly 12%.
The benefit depends on low correlation, but it must be set against the extra management cost and risk of entering an unfamiliar sector.Case study
Seen in the real world
This is a fictional, illustrative scenario. Apex Holdings, a mid-sized manufacturing business with an annual turnover of $10,000,000, decided to enter the commercial real estate market to escape shrinking profit margins in industrial production. They purchased an office building for $3,000,000 using cash reserves and a bank loan. Leadership assumed that managing property would be straightforward and provide steady rental income.
Within eighteen months, the reality proved very different. The manufacturing managers spent valuable time dealing with tenant disputes, property maintenance and municipal zoning laws, distracting them from their core factory operations. Meanwhile, industrial supply costs rose, requiring capital that was tied up in the office building. The rental income failed to cover the loan repayments and maintenance costs during a local property downturn.
Apex Holdings learned a hard lesson about unrelated diversification. They sold the property at a loss after two years, realising that entering an unfamiliar sector without proper expertise cost them $400,000 and hurt their primary manufacturing performance. Looking back, the illustrative directors said they should have tested the idea with a small investment, set a maximum loss in advance, and recruited an experienced property manager before committing the full $3,000,000.
Watch out
Common mistakes
- Assuming general management skills apply equally to any new industry without specific market knowledge.
- Failing to conduct proper due diligence on the new sector because the leadership team is blinded by growth ambitions.
- Neglecting the core business while chasing opportunities in the new, unfamiliar market.
Questions
People also ask
Why do companies choose unrelated diversification?
Companies use this strategy to spread financial risk, find new revenue sources, and escape slow-growth core markets.
How does this differ from related diversification?
Related diversification involves moving into similar markets that share customers, technology, or supply chains. Unrelated diversification enters completely unconnected sectors.
Is unrelated diversification usually successful?
Often it struggles because managers lack industry-specific expertise, which can lead to poor decision-making and wasted capital.