Aerospace and defense debt-to-equity ratio

The aerospace and defense industry debt to equity ratio is useful only when the companies, reporting dates and debt definitions match. Divide defined debt by book equity for each peer, then label whether the comparison uses a median, a simple average or pooled balances. The example below is a fictional US treasury workbook, not a measured industry benchmark.

Start with a peer group treasury can defend

An aerospace components supplier should not automatically compare itself with every business carrying an aerospace and defense label. A large contractor with several activities, a specialist component manufacturer and a maintenance business can have different assets, contract terms and funding needs.

The Census Bureau describes NAICS as a system for classifying business establishments. Use the classification to begin the search, then check the activities represented by each consolidated financial statement. An establishment classification does not establish that entire corporate groups are comparable.

Record each peer's business mix, fiscal period end, consolidation boundary and accounting basis in the workbook. Identify material acquisitions, disposals or restructuring during the comparison period. Keep the reason for including or excluding a business beside its name so the next reporting cycle can reproduce the selection.

For a broader comparison across sectors, use the separate guide to debt-to-equity by industry. This page focuses on the corporate treasury work needed to make an aerospace and defense peer set usable.

Define debt before calculating leverage

Debt-to-equity ratio = Defined debt / Closing book equity

The underlying debt-to-equity formula is straightforward. The difficult part is deciding which balances enter the numerator and ensuring that each company follows the same policy.

This workbook includes current interest-bearing borrowings, noncurrent interest-bearing borrowings and all finance lease liabilities. Borrowing columns exclude leases, so adding the lease column does not count the same obligation twice. Operating lease liabilities are disclosed separately and excluded from defined debt for every company.

Trade payables, contract liabilities and provisions are also excluded. This is a defined interest-bearing-debt measure, not total liabilities divided by equity. A lender's agreement may use a different definition; preserve that definition separately rather than relabeling this peer calculation as a covenant test.

Use closing consolidated book equity for the same group represented by debt. Do not substitute market capitalization. The SEC's guide to financial statements explains that a balance sheet describes assets, liabilities and shareholders' equity at a fixed point in time. Matching that point matters when comparing financing balances.

A supplied peer workbook, worked through

Assume the following fictional US aerospace component suppliers all report under US GAAP, in USD, at September 30, 2026. They are teaching examples, not actual companies or a representative survey of the industry.

Add the borrowing and finance lease columns, then divide by equity. Ratios below are rounded to two decimal places; retain unrounded calculations when computing summaries.

The pooled figure is $37,500,000 / $30,000,000 = 1.25x. The simple average of the unrounded company ratios is 1.23x, while the median is 1.38x. These answer different questions: the median describes the middle company, while the pooled ratio measures debt against equity across the combined balances.

Use the company distribution for positioning and show pooled balances separately. Never present any of these figures as the aerospace and defense industry average: the table contains selected fictional suppliers only.

Prove the balances before explaining the ranking

Treasury should tie current and noncurrent borrowings back to each company's debt schedule. The finance lease total should tie to its supporting schedule, with current and noncurrent portions included once. The equity column should match the consolidated balance sheet.

The pooled debt check is also a reconciliation: current borrowings plus noncurrent borrowings plus finance leases must equal the sum of the company debt totals. Here, both routes produce $37,500,000. Operating leases remain visible in the workbook but outside that total.

For an additional interpretation, the debt-to-equity versus debt-to-assets comparison explains why changing the denominator changes the question. Cash is not subtracted here; net debt-to-equity owns that separate measure.

Find out whether debt or equity moved

A higher ratio does not by itself prove that new borrowing increased. Consider a separate sensitivity for Atlas, holding its defined debt unchanged and reducing equity by the cost of a hypothetical share repurchase.

Equity becomes $8,000,000 - $2,000,000 = $6,000,000, so debt-to-equity becomes $11,000,000 / $6,000,000 = 1.83x. The financing balance is unchanged. Cash availability would also need a separate review before treasury evaluated the repurchase.

The treasurer owns the funding interpretation, while the controller owns the classifications and equity reconciliation. Together they can decide whether a difference calls for reviewing maturities, retaining liquidity or investigating accounting movements. The peer ratio alone does not establish borrowing capacity or debt service ability.

Where the comparison goes wrong

• Mixing lease policies. Including operating leases for one peer and excluding them for another changes the numerator before any business difference is considered.
• Ignoring the reporting date. Acquisition funding or debt repayment between different fiscal quarter ends can make a ranking misleading.
• Treating negative equity as low leverage. A negative denominator produces a negative ratio, not a favorable financing position. Flag it and investigate separately.
• Replacing borrowings with all liabilities. Payables and contract liabilities do not enter this workbook's defined debt. Label a broader numerator as a different measure.
• Reading equity movements as borrowing. Repurchases, losses and other equity changes can move the ratio even when debt is stable.

Compare your own peer workbook in Covirage

Bring your company's balance sheet, debt and lease schedules, and a dated peer workbook with the definitions recorded. Covirage maps the columns; its tools compute and check the ratios, and the external AI model explains the differences with every figure traced to its rows. Create a free Covirage account and bring a sample of your own data; creating the account takes about a minute.

See Covirage for spreadsheet analysis for the supporting workflow.