NOC vs. TDG: Northrop Grumman vs. TransDigm Stock Comparison

November 11, 2026

How do Northrop Grumman (NOC) and TransDigm (TDG) stack up? This page sets them side by side across company profile, performance and risk, profitability, growth, financial strength, dividends, and valuation, with selected fundamentals also measured against each stock's industry-group peers.

Company Profile

Northrop Grumman (NOC) and TransDigm (TDG) are both classified in the Aerospace & Defense sub-industry within the broader Aerospace & Defense industry, placing them in the closest GICS peer bucket.

Company profile comparison for Northrop Grumman (NOC) and TransDigm (TDG)
Profile Item	NOC	TDG
Name	Northrop Grumman Corporation	TransDigm Group Inc.
Country/Region	United States	United States
GICS Sector	Industrials	Industrials
GICS Industry Group	Capital Goods	Capital Goods
GICS Industry	Aerospace & Defense	Aerospace & Defense
GICS Sub-Industry	Aerospace & Defense	Aerospace & Defense
Market Capitalization	74.59 billion USD	66.17 billion USD
Currency	USD	USD
Exchange	NYSE	NYSE
Listing Date	December 31, 1981	March 15, 2006
Security Type	Common Stock	Common Stock

Price Performance

Cumulative Growth

NOC

TDG

GSPC

Northrop Grumman (NOC) vs. TransDigm (TDG), with S&P 500 (GSPC) for reference: Growth of a $10,000 investment over the past five years. Adjusted for dividends and splits.

Trailing Returns

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Trailing total returns for Northrop Grumman (NOC) and TransDigm (TDG). Returns over one year are annualized.

Calendar-Year Returns

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Calendar-year total returns for Northrop Grumman (NOC) and TransDigm (TDG). Each bar is that year's total return, measured year-end to year-end.

Performance Metrics

Price performance metrics for Northrop Grumman (NOC) and TransDigm (TDG)
Metric	NOC	TDG
Total Return (1Y)	-3.34%	-3.42%
Total Return (3Y, Annualized)	7.23%	14.26%
Total Return (5Y, Annualized)	9.98%	16.86%

Risk Profile

Drawdown History

NOC

TDG

GSPC

Northrop Grumman (NOC) vs. TransDigm (TDG), with S&P 500 (GSPC) for reference: Drawdown from the running peak over the past five years. Each line shows the decline from its prior peak; 0% marks a new high.

Return Distribution

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Distribution of monthly total returns for Northrop Grumman (NOC) and TransDigm (TDG). Each bar is the share of months whose return fell in that 5% bucket.

Risk Metrics

Northrop Grumman (NOC) reports a negative beta of -0.12, suggesting inverse market sensitivity over the measurement window. That is uncommon for ordinary equities and can reflect commodity-linked or hedge-like exposure, but it can also come from statistical noise. TransDigm (TDG) has a non-negative beta of 0.94.

Risk profile metrics for Northrop Grumman (NOC) and TransDigm (TDG)
Metric	NOC	TDG
Volatility (1Y, Annualized)	28.86%	28.03%
Beta (5Y)	-0.12	0.94
Max Drawdown (5Y)	-37.80%	-29.05%
Avg. Volume (3M)	902.47K	369.72K

Risk-Adjusted Performance

Risk-Return Positioning

NOC and TDG are plotted by 1-year volatility (risk) and 1-year return. The dashed Capital Allocation Line runs from the risk-free rate through the shared industry median.

Risk-Adjusted Metrics

Risk-adjusted metrics for Northrop Grumman (NOC) and TransDigm (TDG)
Metric	NOC	TDG
Sharpe Ratio (1Y)	-0.26	-0.27
Sortino Ratio (1Y)	-0.37	-0.38

Profitability

ROE (TTM)

Capital efficiency shows on one side only: Northrop Grumman (NOC) earns 26.07% on shareholders’ equity, ranked against its industry; TransDigm (TDG) has no ROE this period.

NOC

Capital Goods industry group

26.07%

Max: 40.55%
NOC: 26.07%
Q3: 19.29%
Median: 12.12%
Q1: 4.08%
Min: -17.12%

TDG

Capital Goods industry group

Max: 40.55%
Q3: 19.29%
Median: 12.12%
Q1: 4.08%
Min: -17.12%
TDG: --

Northrop Grumman (NOC) vs. TransDigm (TDG): TDG does not report ROE, so it has no value marker; NOC is benchmarked against the Capital Goods industry group.

Net Margin (TTM)

TransDigm (TDG) at 21.28% retains a top-quartile share of revenue as profit, ahead of Northrop Grumman (NOC) at 10.37%, which keeps about the industry-typical share.

NOC

Capital Goods industry group

10.37%

Max: 27.47%
Q3: 12.10%
NOC: 10.37%
Median: 6.30%
Q1: 1.40%
Min: -12.89%

TDG

Capital Goods industry group

21.28%

Max: 27.47%
TDG: 21.28%
Q3: 12.10%
Median: 6.30%
Q1: 1.40%
Min: -12.89%

Northrop Grumman (NOC) vs. TransDigm (TDG): A comparison of their net margin against the Capital Goods industry group benchmark.

Operating Margin (TTM)

TransDigm (TDG) at 46.01% turns sales into operating profit above its industry’s benchmark range, while Northrop Grumman (NOC) at 12.91% operates around its industry’s norm.

NOC

Capital Goods industry group

12.91%

Max: 36.60%
Q3: 18.33%
NOC: 12.91%
Median: 11.12%
Q1: 5.14%
Min: -12.63%

TDG

Capital Goods industry group

46.01%

TDG: 46.01%
Max: 36.60%
Q3: 18.33%
Median: 11.12%
Q1: 5.14%
Min: -12.63%

Northrop Grumman (NOC) vs. TransDigm (TDG): A comparison of their operating margin against the Capital Goods industry group benchmark.

Profitability Metrics

Profitability metrics for Northrop Grumman (NOC) and TransDigm (TDG)
Metric	NOC	TDG
ROE (TTM)	26.07%	--
ROA (TTM)	7.11%	11.82%
Net Margin (TTM)	10.37%	21.28%
Operating Margin (TTM)	12.91%	46.01%
Gross Margin (TTM)	20.03%	59.82%

Growth

Revenue Growth

Both Northrop Grumman (NOC) at 2.24% and TransDigm (TDG) at 11.22% land near their industries' usual revenue growth ranges, so top-line momentum looks broadly in line with peers on both sides.

Northrop Grumman (NOC) vs. TransDigm (TDG): A comparison of their Revenue Growth across different time periods.

EPS Growth

Both Northrop Grumman (NOC) at 2.61% and TransDigm (TDG) at 25.21% land near their industries' usual EPS growth ranges, so bottom-line momentum looks broadly in line with peers on both sides.

Northrop Grumman (NOC) vs. TransDigm (TDG): A comparison of their EPS Growth across different time periods.

Growth Metrics

Growth metrics for Northrop Grumman (NOC) and TransDigm (TDG)
Metric	NOC	TDG
Revenue Growth (YoY)	2.24%	11.22%
Revenue Growth (3Y CAGR)	4.65%	17.61%
EPS Growth (YoY)	2.61%	25.21%
EPS Growth (3Y CAGR)	-2.60%	33.78%

Financial Strength

Current Ratio (MRQ)

TransDigm (TDG) at 3.02 carries current ratio above its industry’s typical mid-range, while Northrop Grumman (NOC) at 1.23 runs in the tighter-liquidity quartile — different working-capital profiles, both worth examining.

NOC

Capital Goods industry group

1.23

Max: 5.22
Q3: 2.95
Median: 2.08
Q1: 1.43
NOC: 1.23
Min: 0.36

TDG

Capital Goods industry group

3.02

Max: 5.22
TDG: 3.02
Q3: 2.95
Median: 2.08
Q1: 1.43
Min: 0.36

Northrop Grumman (NOC) vs. TransDigm (TDG): A comparison of their current ratio against the Capital Goods industry group benchmark.

Debt / Equity (MRQ)

Only one side’s leverage can be read here: Northrop Grumman (NOC) carries debt-to-equity ratio of 0.93 against its industry range, while TransDigm (TDG) reports no figure this period.

NOC

Capital Goods industry group

0.93

Max: 2.33
Q3: 1.12
NOC: 0.93
Median: 0.60
Q1: 0.29
Min: 0.00

TDG

Capital Goods industry group

Max: 2.33
Q3: 1.12
Median: 0.60
Q1: 0.29
Min: 0.00
TDG: --

Northrop Grumman (NOC) vs. TransDigm (TDG): TDG does not report debt-to-equity ratio, so it has no value marker; NOC is benchmarked against the Capital Goods industry group.

Financial Strength Metrics

Financial strength metrics for Northrop Grumman (NOC) and TransDigm (TDG)
Metric	NOC	TDG
Current Ratio (MRQ)	1.23	3.02
Debt / Equity (MRQ)	0.93	--
Net Debt / EBITDA	1.87	6.03

Dividends

Dividend Yield (TTM)

TransDigm (TDG) pays no dividend (yield 0.00%) — it may be reinvesting, using buybacks, or simply not returning cash through dividends. Meanwhile Northrop Grumman (NOC) reports a yield of 1.82%, ranking against industry peers normally.

NOC

Capital Goods industry group

1.82%

Max: 2.66%
NOC: 1.82%
Q3: 1.14%
Median: 0.24%
Q1: 0.00%
Min: 0.00%

TDG

Capital Goods industry group

0.00%

Max: 2.66%
Q3: 1.14%
Median: 0.24%
TDG: 0.00%
Q1: 0.00%
Min: 0.00%

Northrop Grumman (NOC) vs. TransDigm (TDG): A comparison of their dividend yield against the Capital Goods industry group benchmark.

Dividend Payout Ratio (TTM)

TransDigm (TDG) pays no dividend (payout 0.00%) — it may be reinvesting, using buybacks, or simply not returning cash through dividends. Meanwhile Northrop Grumman (NOC) reports a payout of 30.18%, ranking against industry peers normally.

NOC

Capital Goods industry group

30.18%

Max: 67.39%
NOC: 30.18%
Q3: 28.02%
Median: 6.86%
Q1: 0.00%
Min: 0.00%

TDG

Capital Goods industry group

0.00%

Max: 67.39%
Q3: 28.02%
Median: 6.86%
TDG: 0.00%
Q1: 0.00%
Min: 0.00%

Northrop Grumman (NOC) vs. TransDigm (TDG): A comparison of their payout ratio against the Capital Goods industry group benchmark.

Dividend Metrics

Dividend metrics for Northrop Grumman (NOC) and TransDigm (TDG)
Metric	NOC	TDG
Dividend Yield (TTM)	1.82%	0.00%
Dividend Payout Ratio (TTM)	30.18%	0.00%

Valuation

P/E Ratio (TTM)

Northrop Grumman (NOC) at 16.57 sits in the cheaper P/E ratio quartile, while TransDigm (TDG) at 36.31 sits in the richer quartile — a clear split in what investors pay for each dollar of trailing earnings.

NOC

Capital Goods industry group

16.57

Max: 59.38
Q3: 35.92
Median: 25.41
Q1: 19.47
NOC: 16.57
Min: 3.03

TDG

Capital Goods industry group

36.31

Max: 59.38
TDG: 36.31
Q3: 35.92
Median: 25.41
Q1: 19.47
Min: 3.03

Northrop Grumman (NOC) vs. TransDigm (TDG): A comparison of their P/E ratio against the Capital Goods industry group benchmark.

P/S Ratio (TTM)

Northrop Grumman (NOC) at 1.71 is priced about in line with its industry on P/S ratio, while TransDigm (TDG) at 6.61 sits in the pricier quartile — TDG costs more per dollar of sales.

NOC

Capital Goods industry group

1.71

Max: 7.54
Q3: 3.76
Median: 2.15
NOC: 1.71
Q1: 1.03
Min: 0.03

TDG

Capital Goods industry group

6.61

Max: 7.54
TDG: 6.61
Q3: 3.76
Median: 2.15
Q1: 1.03
Min: 0.03

Northrop Grumman (NOC) vs. TransDigm (TDG): A comparison of their P/S ratio against the Capital Goods industry group benchmark.

P/B Ratio (MRQ)

TransDigm (TDG) reports a negative P/B ratio of -6.74, meaning negative book equity — the multiple itself is not meaningful for valuation. Meanwhile Northrop Grumman (NOC) reports 3.99, ranking against industry peers normally.

NOC

Capital Goods industry group

3.99

Max: 9.66
Q3: 5.00
NOC: 3.99
Median: 3.12
Q1: 1.81
Min: -1.08

TDG

Capital Goods industry group

-6.74

Max: 9.66
Q3: 5.00
Median: 3.12
Q1: 1.81
Min: -1.08
TDG: -6.74

Northrop Grumman (NOC) vs. TransDigm (TDG): A comparison of their P/B ratio against the Capital Goods industry group benchmark.

Valuation Metrics

Valuation metrics for Northrop Grumman (NOC) and TransDigm (TDG)
Metric	NOC	TDG
P/E Ratio (TTM)	16.57	36.31
P/S Ratio (TTM)	1.71	6.61
P/B Ratio (MRQ)	3.99	-6.74
Free Cash Flow Yield (TTM)	4.21%	2.20%