Northrop Grumman

NOC on NYSE. Northrop Grumman sells aircraft, weapons, and defense systems to the U.S. military. Market value $67.6bn.

Watch this stockFree. We tell you when something changes.

Price checks use the past 12 months to June 2026. Quality checks use five annual reports, the latest for the year to December 2025.

Should I look at this?

Worth a closer look

Read what could go wrong

This is not advice. Check the numbers below.

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Cash yield
past 12 months to June 2026
5.3%fair

For every $100 of what the whole company costs, it produced $5.31 of spare cash in the past 12 months. A savings account pays about $4.

Price to profit
past 12 months to June 2026
17.7×full

You pay 17.7 years of operating profit for the business. The average large US company costs around 18.

Return on capital
five annual reports to December 2025
12.7%five-year median

Each dollar kept in the business earns 13 cents a year. Above 10 is good.

Quality score: 81 of 100. Price score: 85 of 100. Our list needs 70 on quality and 60 on price.

$483.11 a share, 3% above its 1-year low

Over the past year the price has ranged from $470.06 to $774.00.

Expected to report results Tuesday 20 Oct, before the market opens.

Dividend: 1.9% a year

Paid every year for at least 5 years

Prices from Tuesday’s close (6 October).

Five years of cash, in billions

2.2
1.5
2.1
2.6
3.3
3.6
2021202220232024202512 monthsto Jun '26
Revenue
$35.7bn$36.6bn$39.3bn$41.0bn$42.0bn
Operating margin
15.8%9.8%6.5%10.6%10.8%
Debt to equity
0.990.840.941.060.94
Shares outstanding
0.15bn0.15bn0.14bn0.14bn0.14bn

Health checks

  • Free cash flow positive5 of 5 years
  • Accounting looks honest (Beneish)Not enough data
  • Financial strength (Piotroski)7 of 8 checks we could run
  • Profit backed by cash (accruals)Yes
  • Debt0.94× equity
  • Revenue growth, five yearsSlow, 2.7% a year
  • Buying back its own sharesYes, 7% fewer since 2021

The quarter to June 2026

How the business did, compared with the same quarter a year earlier.

  • Sales: $10.9 billion last quarter, up 5% on a year ago.
  • Profit: $1.1 billion, down 7% on a year ago.
  • It keeps 11 cents of each $1 of sales as operating profit, up from 10 cents a year earlier.
  • Spare cash over the past 12 months: $3.6 billion, up from $1.3 billion.
  • 1% fewer shares than a year ago. Each share owns a bit more of the company.
  • Debt is $12.9 billion more than cash, down from $13.8 billion a year ago.
  • Sales grew on a year ago in each of the last 4 quarters.
Sales by quarter
Sales by quarter
Quarter toAmount
September 2024$10.0bn
December 2024$10.7bn
March 2025$9.5bn
June 2025$10.4bn
September 2025$10.4bn
December 2025$11.7bn
March 2026$9.9bn
June 2026$10.9bn
Profit by quarter
Profit by quarter
Quarter toAmount
September 2024$1.0bn
December 2024$1.3bn
March 2025$481m
June 2025$1.2bn
September 2025$1.1bn
December 2025$1.4bn
March 2026$875m
June 2026$1.1bn

From the company's quarterly reports to the SEC.

Dates

Next results (estimated)
20 October 2026
Last annual report (10-K)
27 January 2026
Next quarterly (estimated, 10-Q)
20 October 2026

Who owns it

9 long-term investors we follow own it, down from 10 last quarter. 1,810 funds in all.

Jun '25
Dec '25
Jun '26
Largest holders overall

From 13F filings for the quarter ended 30 June 2026.

Big holders and activists

1 investor owns more than 5%.

From Schedule 13D and 13G filings: anyone owning more than 5% must file one.

What insiders did

No insider bought shares on the open market in the last 12 months. 6 sold $26m, $10m of it under preset trading plans.

  • WELSH MARK A III
    Director
    Sold
    under a preset trading plan
    Date
    3 August 2026
    Shares
    95
    Price
    $547.53
    Value
    $52,015
  • WELSH MARK A III
    Director
    Sold
    under a preset trading plan
    Date
    4 May 2026
    Shares
    95
    Price
    $571.68
    Value
    $54,310
  • Simpson Kathryn G
    Corp VP & General Counsel
    Sold
    under a preset trading plan
    Date
    2 March 2026
    Shares
    873
    Price
    $745.00
    Value
    $650,385
  • ROEDER ROSHAN S
    CVP & Pres. Mission Systems
    Sold
    under a preset trading plan
    Date
    27 February 2026
    Shares
    1,754
    Price
    $720.00
    Value
    $1m
  • Simpson Kathryn G
    Corp VP & General Counsel
    Sold
    under a preset trading plan
    Date
    19 February 2026
    Shares
    194
    Price
    $727.62
    Value
    $141,158
  • ROEDER ROSHAN S
    CVP & Pres. Mission Systems
    Sold
    under a preset trading plan
    Date
    19 February 2026
    Shares
    512
    Price
    $727.62
    Value
    $372,541
  • Hardesty Michael A
    Corp VP, Controller & CAO
    Sold
    Date
    19 February 2026
    Shares
    147
    Price
    $732.98
    Value
    $107,748
  • Davies Benjamin R.
    CVP & Pres. Defense Systems
    Sold
    Date
    18 February 2026
    Shares
    2,189
    Price
    $719.61
    Value
    $2m
  • Hardesty Michael A
    Corp VP, Controller & CAO
    Sold
    Date
    17 February 2026
    Shares
    716
    Price
    $700.63
    Value
    $501,609
  • Simpson Kathryn G
    Corp VP & General Counsel
    Sold
    under a preset trading plan
    Date
    17 February 2026
    Shares
    779
    Price
    $702.56
    Value
    $547,294

From Form 4 filings: insiders must report trades in their own company's shares within two days.

Warning signs in its filings

Problems the company itself reported to the SEC, in its own words.

None of the serious warning signs we check for were found. 1 thing worth knowing.

We look for five warning signs: doubt it can keep going, weak checks on its own accounts, a notice that its past accounts can't be relied on, a change of auditor, and one customer bringing in a big share of sales. We don't check lawsuits, investigations or debt yet.

We checked the auditor's report, internal controls, restatement notices, auditor changes and big customers in the 10-K filed 27 Jan 2026, plus the 10-Q filed 21 Jul 2026 and 5 later 8-Ks.

  • One big customer

    Worth knowing

    One customer brings in a big share of sales: 84% last year. Losing that customer would hurt.

    “Our largest customer is the U.S. government. Sales to the U.S. government accounted for 84 percent, 87 percent and 86 percent of sales during the years ended December 31, 2025, 2024 and 2023, respectively.”

    From the 10-K filed 27 January 2026, Item 1. Business. Read it in the filing

A 10-K is the yearly report every US company files with the SEC. An 8-K is a short notice of a big event.

What could go wrong

Cheap for a reason is the question the numbers cannot answer.

Whether the price already reflects the risks is what the deep dive is for.

What changed in the risks this year

Companies must list what could hurt them each year. These are the parts that changed since last year’s report.

  • operations can enhance our performance and enable our workforce to meet the needs of the customer.

    Could happen
    operations can enhance our performance and enable our workforce to meet the needs of the customer. Our business may be adversely affected if we cannot continue to successfully integrate artificial intelligence into our business processes, products and services in a cost-effective, efficient, compliant and responsible manner. In addition, the advancement and integration of artificial intelligence technologies into our business are transforming the nature of work and the skills required within our workforce and may lead to workforce displacement. This could require us to invest in additional employee training, manage impacts on morale and retention and compete for candidates who possess more advanced technological skills. If we are unsuccessful in managing such risks to our workforce, it could negatively impact our operations. Additionally, emerging and potential regulations governing the use of artificial intelligence could impose additional requirements that may increase our costs or adversely impact our speed of delivery. Further, improper use of, or failure to adequately integrate, artificial intelligence could increase costs and lead to data breaches, reputational risks and otherwise negatively impact our business.
    Read more
  • The U.S.

    Could happen
    The U.S. government can also introduce new contract terms that could impact and/or restrict our capital deployment strategy under certain circumstances related to contractor underperformance, noncompliance, insufficient prioritization of a particular contract, insufficient investment or insufficient production speed. If our contracts with the U.S. government include such terms and we are determined to have triggered any of the foregoing circumstances, we may be prohibited from engaging in share repurchases or dividends for a period of time.
    Read more
  • • Our insurance coverage, customer indemnifications or other liability protections may be unavailable or inadequate to cover our…

    Could happen
    • Our insurance coverage, customer indemnifications or other liability protections may be unavailable or inadequate to cover our significant risks, which could have a material adverse effect on our financial position, results of operations and/or cash flows.
  • U.S.

    U.S. government contractors (including their subcontractors and others with whom they do business) must comply with various specific procurement laws, regulations, rules and other legal requirements. If we are found to have violated any such requirements, or are found not to have acted responsibly, we may be subject to a wide array of actions, including contract modifications or termination, payment withholds, the loss of export/import privileges, administrative, civil or criminal judgments or penalties (including convictions, agreements, fines, damages and non-monetary relief), or suspension or debarment. Additionally, these various legal requirements, although sometimes customary in government contracting, increase costs and risks and have been and are evolving at a significant pace, which further increases costs and risks. The costs are not always fully recoverable. New laws or other requirements, or changes to existing ones (including, for example, related to cybersecurity, information and data protection, cost accounting, environment, sustainability, securities, competition, compensation costs, employment, taxes, counterfeit parts, pensions, use of certain non-US equipment or acquisitions more broadly), can significantly increase our costs (including compliance costs) and risks, create operational challenges, potentially limit our ability to return cash to shareholders, reduce our profitability and/or adversely affect our competitiveness. Such risks may increase as a result of new regulations or executive orders (such as the recent executive order applicable to government defense contractors, which seeks, among other things, to address underperformance and insufficient prioritization of government contracts, insufficient investment in production and production speed, as well as limit share repurchases and dividends by government defense contractors), different interpretations in how government agencies construe existing requirements, or government agencies taking positions that represent changes from historical practices. In addition, changes in priorities and government actions with respect to defense contracting have led to increased uncertainty regarding such risks, including as a result of uncertainty regarding the impact and implementation of recent executive orders.
    Read more
  • • Business investments and/or recorded goodwill and other long-lived assets may become impaired, which could have a material adverse effect…

    Could happen
    • Business investments and/or recorded goodwill and other long-lived assets may become impaired, which could have a material adverse effect on our financial condition and/or results of operations.

Read it in the annual report

The deep dive

Everything above is arithmetic on public filings. The deep dive reads the last ten years of annual reports, the proxy statements, and the earnings calls, then argues the case the way Buffett, Klarman, and Hohn would, and checks every claim against the source.

  • What the business is worth, as a range, and the margin of safety at today’s price
  • Prices to start buying, buy, and buy hard
  • The three things that would make this a mistake
  • Every number footnoted to the filing it came from
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What a finished deep dive looks like

Not advice. Numbers on this page come from SEC filings and are updated each night; prices are updated again after the US market closes. The five-year figures are rounded.