APG vs. TDG: A Head-to-Head Stock Comparison

Updated on November 21, 2025

Here’s a clear look at APG and TDG, comparing key factors like historical performance, profitability, financial strength, growth, dividend, and valuation.

Company Profile

Symbol	APG	TDG
Company Name	APi Group Corporation	TransDigm Group Incorporated
Country	United States	United States
GICS Sector	Industrials	Industrials
GICS Industry	Construction & Engineering	Aerospace & Defense
Market Capitalization	15.64 billion USD	76.07 billion USD
Exchange	NYSE	NYSE
Listing Date	April 29, 2020	March 15, 2006
Security Type	Common Stock	Common Stock

Historical Performance

This chart compares the performance of APG and TDG by tracking the growth of an initial $10,000 investment in each. Use the tabs to select the desired time period. Data is adjusted for dividends and splits.

APG vs. TDG: Growth of a $10,000 investment over the past one year.

Historical Performance at a Glance

Symbol	APG	TDG
5-Day Price Return	-0.74%	4.01%
13-Week Price Return	5.87%	-3.41%
26-Week Price Return	22.30%	-5.31%
52-Week Price Return	53.39%	-1.64%
Month-to-Date Return	1.44%	2.45%
Year-to-Date Return	55.75%	5.79%
10-Day Avg. Volume	3.37M	0.34M
3-Month Avg. Volume	2.64M	0.33M
3-Month Volatility	24.81%	25.35%
Beta	1.71	0.92

Profitability

Return on Equity (TTM)

APG

8.79%

Construction & Engineering Industry

Max: 26.79%
Q3: 16.67%
Median: 11.05%
Q1: 8.46%
Min: -2.38%

APG’s Return on Equity of 8.79% is on par with the norm for the Construction & Engineering industry, indicating its profitability relative to shareholder equity is typical for the sector.

TDG

37.11%

Aerospace & Defense Industry

Max: 43.89%
Q3: 23.64%
Median: 12.98%
Q1: 8.07%
Min: -2.55%

In the upper quartile for the Aerospace & Defense industry, TDG’s Return on Equity of 37.11% signals a highly effective use of shareholder capital to drive profitability compared to most of its peers.

APG vs. TDG: A comparison of their Return on Equity (TTM) against their respective Construction & Engineering and Aerospace & Defense industry benchmarks.

Net Profit Margin (TTM)

APG

3.55%

Construction & Engineering Industry

Max: 11.67%
Q3: 6.49%
Median: 3.88%
Q1: 2.38%
Min: -2.27%

APG’s Net Profit Margin of 3.55% is aligned with the median group of its peers in the Construction & Engineering industry. This indicates its ability to convert revenue into profit is typical for the sector.

TDG

23.49%

Aerospace & Defense Industry

Max: 14.96%
Q3: 9.50%
Median: 6.59%
Q1: 4.45%
Min: 1.01%

TDG’s Net Profit Margin of 23.49% is exceptionally high, placing it well beyond the typical range for the Aerospace & Defense industry. This demonstrates outstanding operational efficiency and a strong competitive advantage in converting revenue into profit.

APG vs. TDG: A comparison of their Net Profit Margin (TTM) against their respective Construction & Engineering and Aerospace & Defense industry benchmarks.

Operating Profit Margin (TTM)

APG

6.60%

Construction & Engineering Industry

Max: 17.78%
Q3: 9.70%
Median: 5.84%
Q1: 3.94%
Min: -1.78%

APG’s Operating Profit Margin of 6.60% is around the midpoint for the Construction & Engineering industry, indicating that its efficiency in managing core business operations is typical for the sector.

TDG

47.04%

Aerospace & Defense Industry

Max: 17.97%
Q3: 12.09%
Median: 9.29%
Q1: 6.41%
Min: -1.59%

TDG’s Operating Profit Margin of 47.04% is exceptionally high, placing it well above the typical range for the Aerospace & Defense industry. This demonstrates outstanding efficiency in managing its core operations, which can be a result of strong pricing power or superior cost control.

APG vs. TDG: A comparison of their Operating Profit Margin (TTM) against their respective Construction & Engineering and Aerospace & Defense industry benchmarks.

Profitability at a Glance

Symbol	APG	TDG
Return on Equity (TTM)	8.79%	37.11%
Return on Assets (TTM)	3.25%	9.32%
Net Profit Margin (TTM)	3.55%	23.49%
Operating Profit Margin (TTM)	6.60%	47.04%
Gross Profit Margin (TTM)	31.14%	60.61%

Financial Strength

Current Ratio (MRQ)

APG

1.48

Construction & Engineering Industry

Max: 2.26
Q3: 1.54
Median: 1.25
Q1: 0.99
Min: 0.65

APG’s Current Ratio of 1.48 aligns with the median group of the Construction & Engineering industry, indicating that its short-term liquidity is in line with its sector peers.

TDG

3.21

Aerospace & Defense Industry

Max: 3.37
Q3: 2.01
Median: 1.22
Q1: 1.07
Min: 0.68

TDG’s Current Ratio of 3.21 is in the upper quartile for the Aerospace & Defense industry. This signifies a strong liquidity position, suggesting the company is well-equipped to cover its immediate liabilities compared to its peers.

APG vs. TDG: A comparison of their Current Ratio (MRQ) against their respective Construction & Engineering and Aerospace & Defense industry benchmarks.

Debt-to-Equity Ratio (MRQ)

APG

0.93

Construction & Engineering Industry

Max: 2.54
Q3: 1.33
Median: 0.64
Q1: 0.29
Min: 0.00

APG’s Debt-to-Equity Ratio of 0.93 is typical for the Construction & Engineering industry, indicating its use of leverage is in line with the sector norm. This suggests a balanced approach to its capital structure.

TDG

5.41

Aerospace & Defense Industry

Max: 1.89
Q3: 0.99
Median: 0.63
Q1: 0.39
Min: 0.03

With a Debt-to-Equity Ratio of 5.41, TDG operates with exceptionally high leverage compared to the Aerospace & Defense industry norm. This suggests an aggressive reliance on debt financing, which can magnify returns but also significantly elevates financial risk.

APG vs. TDG: A comparison of their Debt-to-Equity Ratio (MRQ) against their respective Construction & Engineering and Aerospace & Defense industry benchmarks.

Interest Coverage Ratio (TTM)

APG

3.16

Construction & Engineering Industry

Max: 30.69
Q3: 15.27
Median: 7.88
Q1: 4.27
Min: -6.49

In the lower quartile for the Construction & Engineering industry, APG’s Interest Coverage Ratio of 3.16 indicates a tighter cushion for servicing debt, suggesting less financial flexibility than many of its competitors.

TDG

2.67

Aerospace & Defense Industry

Max: 29.86
Q3: 19.49
Median: 7.09
Q1: 2.62
Min: -7.63

TDG’s Interest Coverage Ratio of 2.67 is positioned comfortably within the norm for the Aerospace & Defense industry, indicating a standard and healthy capacity to cover its interest payments.

APG vs. TDG: A comparison of their Interest Coverage Ratio (TTM) against their respective Construction & Engineering and Aerospace & Defense industry benchmarks.

Financial Strength at a Glance

Symbol	APG	TDG
Current Ratio (MRQ)	1.48	3.21
Quick Ratio (MRQ)	1.33	2.16
Debt-to-Equity Ratio (MRQ)	0.93	5.41
Interest Coverage Ratio (TTM)	3.16	2.67

Growth

Revenue Growth

APG vs. TDG: A side-by-side comparison of their Revenue Growth for the MRQ (YoY), TTM (YoY), 3-Year CAGR, and 5-Year CAGR periods.

EPS Growth

APG vs. TDG: A side-by-side comparison of their EPS Growth for the MRQ (YoY), TTM (YoY), 3-Year CAGR, and 5-Year CAGR periods.

Dividend

Dividend Yield (TTM)

APG

0.00%

Construction & Engineering Industry

Max: 5.80%
Q3: 3.25%
Median: 1.76%
Q1: 0.17%
Min: 0.00%

APG currently does not pay a dividend, resulting in a yield of 0%. This is a common strategy for growth-focused companies that prioritize reinvesting earnings, though it may be less typical in mature, income-oriented sectors.

TDG

12.76%

Aerospace & Defense Industry

Max: 2.87%
Q3: 1.46%
Median: 0.58%
Q1: 0.10%
Min: 0.00%

TDG’s Dividend Yield of 12.76% is exceptionally high, placing it well above the typical range for the Aerospace & Defense industry. While this may seem attractive, an unusually high yield can sometimes be a warning sign, reflecting a falling stock price or market concerns about the dividend’s sustainability.

APG vs. TDG: A comparison of their Dividend Yield (TTM) against their respective Construction & Engineering and Aerospace & Defense industry benchmarks.

Dividend Payout Ratio (TTM)

APG

0.00%

Construction & Engineering Industry

Max: 144.77%
Q3: 74.39%
Median: 50.47%
Q1: 8.02%
Min: 0.00%

APG has a Dividend Payout Ratio of 0%, indicating it does not currently pay a dividend. This is a common strategy for growth-oriented companies that reinvest all profits back into the business.

TDG

872.98%

Aerospace & Defense Industry

Max: 110.40%
Q3: 51.46%
Median: 20.20%
Q1: 4.21%
Min: 0.00%

At 872.98%, TDG’s Dividend Payout Ratio is exceptionally high, exceeding the typical range for the Aerospace & Defense industry. While this provides a significant return to shareholders, it may limit funds for reinvestment and could be difficult to sustain.

APG vs. TDG: A comparison of their Dividend Payout Ratio (TTM) against their respective Construction & Engineering and Aerospace & Defense industry benchmarks.

Dividend at a Glance

Symbol	APG	TDG
Dividend Yield (TTM)	0.00%	12.76%
Dividend Payout Ratio (TTM)	0.00%	872.98%

Valuation

Price-to-Earnings Ratio (TTM)

APG

57.64

Construction & Engineering Industry

Max: 39.16
Q3: 24.60
Median: 17.05
Q1: 13.85
Min: 1.65

At 57.64, APG’s P/E Ratio is exceptionally high, exceeding the typical maximum for the Construction & Engineering industry. This suggests the stock may be significantly overvalued compared to its peers and implies high market expectations that could be difficult to meet.

TDG

36.37

Aerospace & Defense Industry

Max: 94.22
Q3: 53.31
Median: 32.27
Q1: 24.64
Min: 14.57

TDG’s P/E Ratio of 36.37 is within the middle range for the Aerospace & Defense industry. This suggests its valuation is in line with the sector average, representing neither a significant premium nor a discount compared to its peers.

APG vs. TDG: A comparison of their Price-to-Earnings Ratio (TTM) against their respective Construction & Engineering and Aerospace & Defense industry benchmarks.

Price-to-Sales Ratio (TTM)

APG

2.05

Construction & Engineering Industry

Max: 2.86
Q3: 1.52
Median: 0.80
Q1: 0.48
Min: 0.12

APG’s P/S Ratio of 2.05 is in the upper echelon for the Construction & Engineering industry. This means the company is valued richly on its revenue stream compared to its peers, suggesting the stock is priced for a high level of future performance.

TDG

8.54

Aerospace & Defense Industry

Max: 7.20
Q3: 3.95
Median: 2.35
Q1: 1.71
Min: 0.32

With a P/S Ratio of 8.54, TDG trades at a valuation that eclipses even the highest in the Aerospace & Defense industry. This implies the market has priced in exceptionally optimistic scenarios for future revenue growth, posing considerable valuation risk.

APG vs. TDG: A comparison of their Price-to-Sales Ratio (TTM) against their respective Construction & Engineering and Aerospace & Defense industry benchmarks.

Price-to-Book Ratio (MRQ)

APG

4.36

Construction & Engineering Industry

Max: 7.53
Q3: 3.97
Median: 1.90
Q1: 1.22
Min: 0.24

APG’s P/B Ratio of 4.36 is in the upper tier for the Construction & Engineering industry. This indicates that investors are paying a premium relative to the company’s net assets, a valuation that hinges on its ability to generate superior profits.

TDG

10.13

Aerospace & Defense Industry

Max: 18.61
Q3: 9.58
Median: 5.45
Q1: 3.11
Min: 0.94

TDG’s P/B Ratio of 10.13 is in the upper tier for the Aerospace & Defense industry. This indicates that investors are paying a premium relative to the company’s net assets, a valuation that hinges on its ability to generate superior profits.

APG vs. TDG: A comparison of their Price-to-Book Ratio (MRQ) against their respective Construction & Engineering and Aerospace & Defense industry benchmarks.

Valuation at a Glance

Symbol	APG	TDG
Price-to-Earnings Ratio (TTM)	57.64	36.37
Price-to-Sales Ratio (TTM)	2.05	8.54
Price-to-Book Ratio (MRQ)	4.36	10.13
Price-to-Free Cash Flow Ratio (TTM)	27.41	41.54