APG vs. TDG: APi Group vs. TransDigm Stock Comparison

November 11, 2026

How do APi Group (APG) 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

APi Group (APG) and TransDigm (TDG) both fall under the Capital Goods industry group, but APG is classified in Construction & Engineering while TDG is classified in Aerospace & Defense.

TransDigm (TDG) has more than two decades of public-market history since March 15, 2006, whereas APi Group (APG) listed on April 29, 2020 and has a much shorter record to draw on.

Company profile comparison for APi Group (APG) and TransDigm (TDG)
Profile Item	APG	TDG
Name	APi Group Corporation Common Stock	TransDigm Group Inc.
Country/Region	United States	United States
GICS Sector	Industrials	Industrials
GICS Industry Group	Capital Goods	Capital Goods
GICS Industry	Construction & Engineering	Aerospace & Defense
GICS Sub-Industry	Construction & Engineering	Aerospace & Defense
Market Capitalization	17.38 billion USD	66.17 billion USD
Currency	USD	USD
Exchange	NYSE	NYSE
Listing Date	April 29, 2020	March 15, 2006
Security Type	Common Stock	Common Stock

Price Performance

Cumulative Growth

APG

TDG

GSPC

APi Group (APG) 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 APi Group (APG) and TransDigm (TDG). Returns over one year are annualized.

Calendar-Year Returns

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Calendar-year total returns for APi Group (APG) and TransDigm (TDG). Each bar is that year's total return, measured year-end to year-end.

Performance Metrics

Price performance metrics for APi Group (APG) and TransDigm (TDG)
Metric	APG	TDG
Total Return (1Y)	17.89%	-3.42%
Total Return (3Y, Annualized)	33.17%	14.26%
Total Return (5Y, Annualized)	23.35%	16.86%

Risk Profile

Drawdown History

APG

TDG

GSPC

APi Group (APG) 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 APi Group (APG) and TransDigm (TDG). Each bar is the share of months whose return fell in that 5% bucket.

Risk Metrics

Risk profile metrics for APi Group (APG) and TransDigm (TDG)
Metric	APG	TDG
Volatility (1Y, Annualized)	32.45%	28.03%
Beta (5Y)	1.59	0.94
Max Drawdown (5Y)	-49.62%	-29.05%
Avg. Volume (3M)	3.19M	369.72K

Risk-Adjusted Performance

Risk-Return Positioning

APG 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 APi Group (APG) and TransDigm (TDG)
Metric	APG	TDG
Sharpe Ratio (1Y)	0.42	-0.27
Sortino Ratio (1Y)	0.61	-0.38

Profitability

ROE (TTM)

Capital efficiency shows on one side only: APi Group (APG) earns 10.85% on shareholders’ equity, ranked against its industry; TransDigm (TDG) has no ROE this period.

APG

Capital Goods industry group

10.85%

Max: 40.55%
Q3: 19.29%
Median: 12.12%
APG: 10.85%
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: --

APi Group (APG) vs. TransDigm (TDG): TDG does not report ROE, so it has no value marker; APG 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 APi Group (APG) at 4.12%, which keeps about the industry-typical share.

APG

Capital Goods industry group

4.12%

Max: 27.47%
Q3: 12.10%
Median: 6.30%
APG: 4.12%
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%

APi Group (APG) 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 APi Group (APG) at 9.28% operates around its industry’s norm.

APG

Capital Goods industry group

9.28%

Max: 36.60%
Q3: 18.33%
Median: 11.12%
APG: 9.28%
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%

APi Group (APG) vs. TransDigm (TDG): A comparison of their operating margin against the Capital Goods industry group benchmark.

Profitability Metrics

Profitability metrics for APi Group (APG) and TransDigm (TDG)
Metric	APG	TDG
ROE (TTM)	10.85%	--
ROA (TTM)	5.20%	11.82%
Net Margin (TTM)	4.12%	21.28%
Operating Margin (TTM)	9.28%	46.01%
Gross Margin (TTM)	31.11%	59.82%

Growth

Revenue Growth

Both APi Group (APG) at 12.72% 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.

APi Group (APG) vs. TransDigm (TDG): A comparison of their Revenue Growth across different time periods.

EPS Growth

Only one side can be read here: TransDigm (TDG) reports EPS growth of 25.21%, ranked against its industry; APi Group (APG) has no EPS growth figure this period.

APi Group (APG) vs. TransDigm (TDG): A comparison of their EPS Growth across different time periods.

Growth Metrics

Growth metrics for APi Group (APG) and TransDigm (TDG)
Metric	APG	TDG
Revenue Growth (YoY)	12.72%	11.22%
Revenue Growth (3Y CAGR)	6.45%	17.61%
EPS Growth (YoY)	--	25.21%
EPS Growth (3Y CAGR)	--	33.78%

Financial Strength

Current Ratio (MRQ)

TransDigm (TDG) at 3.02 carries current ratio above its industry’s typical mid-range, while APi Group (APG) at 1.18 runs in the tighter-liquidity quartile — different working-capital profiles, both worth examining.

APG

Capital Goods industry group

1.18

Max: 5.22
Q3: 2.95
Median: 2.08
Q1: 1.43
APG: 1.18
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

APi Group (APG) 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: APi Group (APG) carries debt-to-equity ratio of 1.12 against its industry range, while TransDigm (TDG) reports no figure this period.

APG

Capital Goods industry group

1.12

Max: 2.33
Q3: 1.12
APG: 1.12
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: --

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

Financial Strength Metrics

Financial strength metrics for APi Group (APG) and TransDigm (TDG)
Metric	APG	TDG
Current Ratio (MRQ)	1.18	3.02
Debt / Equity (MRQ)	1.12	--
Net Debt / EBITDA	3.05	6.03

Dividends

Dividend Yield (TTM)

Neither APi Group (APG) nor TransDigm (TDG) pays a dividend this period — they may reinvest, use buybacks, or simply not return cash through dividends.

APG

Capital Goods industry group

0.00%

Max: 2.66%
Q3: 1.14%
Median: 0.24%
APG: 0.00%
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%

APi Group (APG) vs. TransDigm (TDG): A comparison of their dividend yield against the Capital Goods industry group benchmark.

Dividend Payout Ratio (TTM)

Neither APi Group (APG) nor TransDigm (TDG) pays a dividend this period — they may reinvest, use buybacks, or simply not return cash through dividends.

APG

Capital Goods industry group

0.00%

Max: 67.39%
Q3: 28.02%
Median: 6.86%
APG: 0.00%
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%

APi Group (APG) vs. TransDigm (TDG): A comparison of their payout ratio against the Capital Goods industry group benchmark.

Dividend Metrics

Dividend metrics for APi Group (APG) and TransDigm (TDG)
Metric	APG	TDG
Dividend Yield (TTM)	0.00%	0.00%
Dividend Payout Ratio (TTM)	0.00%	0.00%

Valuation

P/E Ratio (TTM)

An earnings multiple is available for just one side: TransDigm (TDG) trades at 36.31 times trailing earnings, ranked against its peers, while APi Group (APG) has no P/E ratio this period.

APG

Capital Goods industry group

Max: 59.38
Q3: 35.92
Median: 25.41
Q1: 19.47
Min: 3.03
APG: --

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

APi Group (APG) vs. TransDigm (TDG): APG does not report P/E ratio, so it has no value marker; TDG is benchmarked against the Capital Goods industry group.

P/S Ratio (TTM)

APi Group (APG) at 1.95 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.

APG

Capital Goods industry group

1.95

Max: 7.54
Q3: 3.76
Median: 2.15
APG: 1.95
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

APi Group (APG) 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 APi Group (APG) reports 5.01, ranking against industry peers normally.

APG

Capital Goods industry group

5.01

Max: 9.66
APG: 5.01
Q3: 5.00
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

APi Group (APG) vs. TransDigm (TDG): A comparison of their P/B ratio against the Capital Goods industry group benchmark.

Valuation Metrics

Valuation metrics for APi Group (APG) and TransDigm (TDG)
Metric	APG	TDG
P/E Ratio (TTM)	--	36.31
P/S Ratio (TTM)	1.95	6.61
P/B Ratio (MRQ)	5.01	-6.74
Free Cash Flow Yield (TTM)	3.54%	2.20%