What's the difference between operating leverage and financial leverage, and how do they affect earnings volatility?
I'm studying corporate issuers for CFA Level I and I keep mixing up operating leverage and financial leverage. Both seem to amplify something, but I'm not sure what each one amplifies or how to measure them. Can someone give me an intuitive explanation with a comparison example?
Operating leverage and financial leverage are two distinct amplification mechanisms that together determine how sensitive a company's earnings per share are to changes in revenue.
Operating Leverage — Fixed Operating Costs Amplify EBIT
A company with high fixed operating costs (rent, depreciation, salaried staff) experiences larger percentage swings in EBIT (operating income) for a given percentage change in revenue. This is because fixed costs don't change with sales volume.
Degree of Operating Leverage (DOL):
DOL = % Change in EBIT / % Change in Revenue
Alternatively: DOL = Q(P - V) / [Q(P - V) - F]
Where Q = quantity, P = price, V = variable cost per unit, F = fixed operating costs.
Financial Leverage — Fixed Financial Costs Amplify EPS
A company with debt in its capital structure has fixed interest payments. These don't change with EBIT, so larger swings in EBIT translate to even larger percentage swings in EPS.
Degree of Financial Leverage (DFL):
DFL = % Change in EPS / % Change in EBIT
Alternatively: DFL = EBIT / (EBIT - Interest)
Comparison Example — Ridgefield Apparel vs. Summit Apparel
Both companies sell identical shirts at $40 each with variable cost of $22 per unit. They each sell 50,000 units.
| Ridgefield (High Op Leverage) | Summit (Low Op Leverage) | |
|---|---|---|
| Fixed operating costs | $600,000 | $300,000 |
| Variable cost per unit | $22 | $28 (higher because less automation) |
| Revenue | $2,000,000 | $2,000,000 |
| Total variable costs | $1,100,000 | $1,400,000 |
| EBIT | $300,000 | $300,000 |
| Interest expense | $50,000 | $50,000 |
| EBT | $250,000 | $250,000 |
Now suppose sales increase by 10% (to 55,000 units):
| Ridgefield | Summit | |
|---|---|---|
| New Revenue | $2,200,000 | $2,200,000 |
| New Variable Costs | $1,210,000 | $1,540,000 |
| New EBIT | $390,000 (+30%) | $360,000 (+20%) |
| New EBT | $340,000 (+36%) | $310,000 (+24%) |
Ridgefield's DOL = 30% / 10% = 3.0
Summit's DOL = 20% / 10% = 2.0
Ridgefield has higher operating leverage because it has higher fixed costs and lower variable costs. A 10% revenue increase produces a 30% EBIT increase for Ridgefield but only 20% for Summit.
The Double-Edged Sword:
Leverage amplifies in both directions. If sales drop 10%, Ridgefield's EBIT falls 30% while Summit's falls only 20%. High leverage means high reward in good times and high pain in bad times.
Exam Tip: Operating leverage is about the cost structure (fixed vs. variable operating costs). Financial leverage is about the capital structure (debt vs. equity). The exam may ask you to identify which type of leverage is at play based on a company description — if they mention factories and automation, think operating leverage; if they mention debt and interest, think financial leverage.
Practice leverage problems in our CFA Level I question bank.
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