The following chart analyzes interest bearing debt as a percentage of market value of equity, looking at the amount of debt the company carries relative to the value of equity. From 2020 to 2024, Lockheed Martin consistently maintained the lowest interest-bearing debt to market value of equity ratio, ranging from 11% to 17%, signaling strong equity valuation and conservative use of debt. Northrop Grumman and RTX showed moderate leverage, with ratios generally in the 23% to 35% range, reflecting stable but more debt-reliant capital structures. Boeing, with the highest ratios, peaking at 50%, has relied heavily on debt, likely due to pressures in its commercial segment.
Here, interest bearing debt is analyzed as a percentage of total assets, which explains how much of a company's assets are financed through debt. Between 2020 and 2024, Lockheed Martin shows a steady rise in leverage, increasing from 24% to 38.5%, indicating a growing use of debt to finance its asset base. Northrop Grumman remains relatively stable in the 34%–37% range, reflecting consistent moderate leverage. Boeing has the highest ratio, exceeding 41% in 2020–2021, and gradually reduces it to 35% by 2024, however they still have the highest among competitors. RTX maintains the lowest leverage, fluctuating between 20% and 28%, suggesting a more conservative balance sheet. Lockheed starts to outpace it's competitors in 2024, after maintain the lowest leverage ratios, indicating increased debt use to fund it's assets .
The EBITDA/Interest Expense ratio measures the ability to cover interest payments using operating revenues. From 2020-2024, Lockheed Martin’s EBITDA-to-interest expense ratio declined from 16.9 to 8.1, indicating it still comfortably covers interest payments, but with a shrinking margin. Northrop showed similar movement, ending 2024 at 11.0, reflecting stable but tightening coverage. Boeing’s ratios remained weak throughout, falling into negative territory in 2020 and 2024, expressing continued pressure on its ability to meet interest obligations. RTX posted exceptionally high coverage ratios—over 235 in 2024—indicating strong earnings relative to debt costs. The negative value in 2020 reflects RTX's merger with Collin's Aerospace.
The CF from operations/interest expense measures how well a company can cover its interest payments, from the cash it generates from core operations. From 2020 to 2024, Lockheed Martin steadily declined from 13.85 to 6.73, indicating they still generate enough operating cash to cover interest, but with less buffer over time. Additionally, this indicates a higher interest burden or decreased operating revenue. Northrop Grumman remained fairly stable in the 5.7–7.3 range, indicating consistent but modest coverage. Boeing’s ratios were the weakest, with negative values in 2020 and 2024, highlighting periods when operating cash flow was not sufficient enough to cover interest payments. RTX posted exceptionally strong ratios, reaching over 131 in 2024, reflecting significant operating cash flow relative to interest costs. In 2020 they had a negative ratio, but again that was due to the Collin's Aerospace merger.
The Altman Z-score measures the likelihood of bankruptcy or insolvency in the next two years, by combining the following financial ratios - working capital/total assets ratio, retained earnings/total assets ratio, EBIT/total assets ratio, market value of equities/total liabilities ratio, and total sales/total assets ratio. The Z-score is measured from 0 - 4.0+, in which 0-1.8 represents the distressed zone, 1.8-3.0 represents a grey zone, and 3.0-4.0+ represents a safe zone. Lockheed Martin has been in the safe zone for the past five years, indicating a healthy company and low bankruptcy risk in the short term. Northrop hovers around the grey zone and safe zone, their scores for the past five years suggest moderate financial health with no immediate risk, but should be watched carefully. Boeing has remined in the distressed zone for the last five years indicating continued financial struggles and faces vulnerability to insolvency. RTX has remained in the grey zone for the past five years, but has shown a consistent improvement, indicating moderate financial health and no immediate risk.
A - Long term issue default rating
F1 - Short term issue default rating
Long term rating of A represents a low level of default risk relative to other issues or obligations in the same monetary union
F1 represents the strongest capacity of timely payments for financial commitments
Source: Fitch Ratings
BBB+ - Long term issue default rating
F2 - Short term issue default rating
BBB rating indicates moderate default risk relative to other issuers or obligations
F2 indicates a good capacity for timely payment of financial commitments
Source: Fitch ratings
BBB- (Long Term issue default raiting)
F3 - Short term issue default rating
BBB- represents a moderate level of default risk, but is at higher risk of default than BBB or BBB+
F3 represents an adequate capacity for timely payment of financial commitments
Source: Fitch Ratings
BBB+ (Long term issue default rating)
A-2 - (Short term issue default rating)
BBB+ represents adequate capacity to pay long term obligations, but may weaken under economic conditions.
A-2 represents satisfactory capacity, but more susceptible to changes in circumstances.
Source: S&P Global
Senior unsecured notes
Issued $5Billion worth of notes from May 2023 through December 2024
Maturities for the notes are 2028, 2029, 2031, 2034 , 2055
All notes on balance sheet have maturities from 2025 - 2064, with interest ranging from 3.55% to 6.15%
Entered into a new revolving credit agreement in 2022 for a $3billion unsecured credit facility
In 2024 the credit facility was extended from 2028 to 2029
Some of the long term notes have split maturities for different amounts, including the 2028, and 2029 maturities, which will total $1.15 Billion.
No recent commercial paper issuance