HEI vs BA vs TDG Stock Comparison

Heico, Boeing and TransDigm Prices as of Nov 3, 2026 Peers: Industry group
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HEI Heico Corp
$337.62 +11.7% 1M +7.2% 1Y
Market cap
$47.20B
P/E
55.7x
Revenue (TTM)
$5.18B
Div. yield
0.00%
Commercial Aerospace Industrials
5 wins
BA Boeing Co
$173.30 -10.5% 1M -15.3% 1Y
Market cap
$140.36B
P/E
19.2x
Revenue (TTM)
$94.91B
Div. yield
–
Commercial Aerospace Industrials
3 wins
TDG TransDigm Group INC
$1,207.97 +10.8% 1M -7.1% 1Y
Market cap
$69.59B
P/E
36.4x
Revenue (TTM)
$10.01B
Div. yield
–
Commercial Aerospace Industrials
3 wins

Head to Head

11 decided of 12

Heico leads on 5 of the 12 questions below (Heico 5, Boeing 3, TransDigm 3). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionHEIBATDGLeader
Larger companyMarket capitalisation $47.20B $140.36B $69.59B BA
Cheaper on earningsLower P/E, profitable companies only 55.7x 19.2x 36.4x BA
Cheaper on forward earningsLower price / next fiscal year consensus EPS 55.5x — 27.4x TDG
Faster revenue growthRevenue growth, trailing twelve months +20.7% +17.5% +16.6% HEI
More profitableNet margin, trailing twelve months 16.4% 7.7% 19.1% TDG
Better return on capitalReturn on invested capital 13.5% 18.2% 15.5% BA
Less leveragedLower net debt / EBITDA 1.6x 2.1x 6.1x HEI
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +7.2% -15.3% -7.1% HEI
Better 5-year returnAnnualised price return, 5 years +19.3%/yr -4.0%/yr +13.9%/yr HEI
Less volatileAnnualised volatility, 1 year 33.0% 35.6% 28.0% TDG
Higher overall scoreMean of the five percentile scores vs peers 67/100 57/100 66/100 HEI

Percentile Scorecard

HEIBATDG

Each axis is the mean percentile of its metrics against the company's industry group. 100 is the best in the group, 50 the middle.

Scores by Axis

AxisHEIBATDG
Valuation 35 #66 of 101 65 #36 of 101 55 #46 of 101
Growth 81 #19 of 98 84 #17 of 98 66 #34 of 98
Profitability 94 #7 of 97 68 #32 of 97 96 #5 of 97
Financial Health 59 #44 of 107 12 #94 of 107 18 #88 of 107
Shareholder Returns 67 #22 of 65 – 94 #5 of 65
Overall 67 57 66
  • HEI ranked among 108 companies in Aerospace and Defense
  • BA ranked among 108 companies in Aerospace and Defense
  • TDG ranked among 108 companies in Aerospace and Defense

Price Performance

Price return, split-adjusted, before dividends. Click a name to hide or show it.

Returns

PeriodHEIBATDGSPY
1 month +11.7%-10.5%+10.8% -2.0%
3 months -8.2%-26.9%-5.3% -2.2%
6 months +21.7%-22.8%+1.4% +4.2%
Year to date +4.3%-20.2%-9.2% +10.6%
1 year +7.2%-15.3%-7.1% +10.4%
3 years +108.4%-11.2%+36.9% +73.6%
3 years, per year +27.8%-3.9%+11.1% +20.2%
5 years +141.8%-18.6%+92.0% +61.6%
5 years, per year +19.3%-4.0%+13.9% +10.1%
10 years +892.7%+23.8%+353.3% +261.3%
10 years, per year +25.8%+2.2%+16.3% +13.7%

Risk

MeasureHEIBATDGSPY
Volatility, 1Y 33.0%35.6%28.0% 12.8%
Downside volatility, 1Y 31.5%34.7%29.2% 12.8%
Beta vs S&P 500, 1Y 1.111.110.74 1.00
Return / volatility, 1Y 0.22-0.43-0.25 0.81
Max drawdown, 5Y -27.1%-50.3%-33.6% -25.4%
From 52-week high -9.9%-31.3%-16.7% -3.2%
52-week high $374.67$252.15$1,450.00 $779.14
52-week low $260.99$167.12$1,076.01 $631.97

Valuation History

Weekly multiples on trailing twelve-month fundamentals. Negative or extreme readings (a loss year, a collapsed denominator) are left out so the chart stays readable.

MultipleHEIBATDG
P/E now vs peer median 55.6xmedian 26.8x 18.8xmedian 26.8x 36.3xmedian 26.8x
P/S now vs peer median 9.1xmedian 2.9x 1.4xmedian 2.9x 6.7xmedian 2.9x
EV/EBITDA now vs peer median 33.8xmedian 14.7x 13.5xmedian 14.7x 19.2xmedian 14.7x
P/FCF now vs peer median 45.8xmedian 29.2x 8,583xmedian 29.2x 34.7xmedian 29.2x
P/B now vs peer median 9.4xmedian 2.6x 20.9xmedian 2.6x -6.8xmedian 2.6x
PEG now vs peer median 1.99median 0.93 0.32median 0.93 1.72median 0.93

Financial History

Reported figures by fiscal period, placed on the calendar year (or quarter) each period ended in, so companies with different fiscal years line up.

Trailing twelve monthsHEIBATDG
Revenue $5.18B $94.91B $10.01B
Gross profit $2.09B $8.94B $5.96B
Operating income $1.24B $9.74B $4.61B
Net income $912.35M $7.66B $2.13B
Free cash flow $1.03B $16.00M $1.93B
R&D – $3.62B –
EPS (diluted) $6.00 $9.22 $33.29
Cash & equivalents $240.96M $9.50B $2.77B
Total debt $2.54B $45.92B $33.49B
Shares (diluted) 141.27M 792.90M 57.40M
Enterprise value $46.27B $49.32B $57.60B

All Metrics

58 metrics · best in bold

Bold marks the best reading: the lowest positive value for multiples, leverage and payout, the highest for everything else. The bar under each value is its percentile against that company's own peers. Hover a value for its rank and the peer median.

Valuation

12 metrics
MetricHEIBATDG
P/E 55.6x 18.8x 36.3x
P/FCF 45.8x 8,583x 34.7x
P/Operating cash flow 42.4x 34.2x 30.4x
P/S 9.1x 1.4x 6.7x
P/B 9.4x 20.9x -6.8x
P/Tangible book 14.5x 26.0x -4.6x
EV/EBITDA 33.8x 13.5x 19.2x
EV/EBIT 39.7x 16.7x 21.2x
EV/Revenue 9.6x 1.7x 9.7x
EV/FCF 48.0x 10,159x 50.6x
EV/Operating cash flow 44.5x 40.5x 44.4x
PEG (3Y EPS CAGR) 1.99 0.32 1.72

Growth

14 metrics
MetricHEIBATDG
Revenue growth (1Y) 20.7% 17.5% 16.6%
Revenue CAGR (3Y) 25.1% 7.8% 17.0%
Gross profit growth (1Y) 23.4% 906.6% 16.9%
Gross profit CAGR (3Y) 26.7% 9.1% 17.9%
Operating income growth (1Y) 29.8% 217.8% 16.7%
Operating income CAGR (3Y) 28.8% 107.6% 19.4%
Net income growth (1Y) 31.5% 177.7% 10.2%
Net income CAGR (3Y) 27.4% 67.1% 22.8%
EPS growth (1Y) 31.8% 168.9% 10.5%
EPS CAGR (3Y) 27.9% 58.4% 21.1%
Operating cash flow growth (1Y) 31.6% 208.0% 4.5%
Operating cash flow CAGR (3Y) 35.7% -12.7% 22.8%
Free cash flow growth (1Y) 31.7% 100.3% 1.1%
Free cash flow CAGR (3Y) 36.8% -84.9% 22.4%

Profitability

14 metrics
MetricHEIBATDG
Gross margin 40.4% 9.4% 59.6%
EBITDA margin 28.2% 12.7% 50.7%
Operating margin 24.0% 10.3% 46.0%
Pretax margin 21.6% 8.3% 27.4%
Net margin 16.4% 7.7% 19.1%
FCF margin 19.9% 0.0% 19.3%
Operating cash flow margin 21.5% 4.2% 22.0%
Return on equity 18.5% 121.0% –
Return on assets 9.3% 4.6% 8.2%
Return on invested capital 13.5% 18.2% 15.5%
Return on capital employed 14.2% 17.9% 19.6%
Asset turnover 0.5x 0.6x 0.4x
Cash conversion (OCF / net income) 1.2x 0.5x 1.0x
Stock comp / revenue 1.0% 0.5% 1.5%

Financial Health

11 metrics
MetricHEIBATDG
Debt / assets 25.6% 26.9% 125.2%
Debt / equity 0.5x 7.0x -3.4x
Net debt / EBITDA 1.6x 2.1x 6.1x
Debt / FCF 2.5x 2,870x 17.4x
Liabilities / assets 49.4% 96.2% 136.7%
Equity / assets 50.6% 3.8% -36.7%
Interest coverage 9.4x 4.0x 2.5x
Current ratio 2.7x 1.1x 3.0x
Quick ratio 1.0x 0.3x 1.9x
Cash ratio 0.2x 0.2x 1.1x
Altman Z-score 7.50 1.49 1.79

Shareholder Returns

7 metrics
MetricHEIBATDG
Dividend yield 0.1% – –
Net buyback yield 0.0% – 2.5%
Shareholder yield 0.1% 0.0% 2.5%
Payout ratio (earnings) 3.8% – –
Payout ratio (FCF) 3.4% – –
Dividend growth (1Y) 9.1% – –
Dividend CAGR (3Y) 8.4% – –

Analyst Estimates

Solid lines are reported fiscal-year results; dashed lines are the consensus for the years ahead. Hover a year for the analysts' high and low, and how each result compared with its estimate.

ConsensusHEIBATDG
Forward P/E 55.5xFY2026 – 27.4xFY2026
EPS, next fiscal year $6.08FY2026 $-0.99FY2026 $44.01FY2026
EPS growth, next FY +24.1%FY2026 -183.2%FY2026 +17.9%FY2026
EPS growth, the year after +20.6% – +7.9%
Revenue, next fiscal year $5.68BFY2026 $91.05BFY2026 $10.01BFY2026
Revenue growth, next FY +26.6%FY2026 +1.8%FY2026 +13.4%FY2026
Revenue growth, the year after +10.4% +18.5% +24.4%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersHEIBATDG
Held by institutions 78.3% 75.6% 93.2%
Institutions holding 774 2,631 1,142
Change in shares held, QoQ +7.4% +2.3% +1.2%
Institutions buying 371 1,329 585
Institutions selling 269 846 368
Buyers to sellers 1.38 1.57 1.59

Return Correlation

Daily returns, last 12 months

1.00 means two stocks move in lockstep, 0 that they move independently. Pairs below about 0.5 diversify each other.

HEIBATDG
HEI 1.00 0.41 0.55
BA 0.41 1.00 0.37
TDG 0.55 0.37 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, HEI, BA and TDG?

Boeing (BA) is the largest by market capitalisation: Heico (HEI) $47.20B, Boeing (BA) $140.36B, TransDigm (TDG) $69.59B.

Which stock is cheaper, HEI, BA and TDG?

Boeing (BA) trades on the lowest price-to-earnings ratio (Heico (HEI) 55.7x, Boeing (BA) 19.2x, TransDigm (TDG) 36.4x). On next year's consensus earnings, TransDigm (TDG) is cheapest (Heico (HEI) 55.5x, TransDigm (TDG) 27.4x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Heico (HEI) grew revenue fastest over the trailing twelve months: Heico (HEI) +20.7%, Boeing (BA) +17.5%, TransDigm (TDG) +16.6%.

Which company is more profitable?

TransDigm (TDG) has the highest net margin (Heico (HEI) 16.4%, Boeing (BA) 7.7%, TransDigm (TDG) 19.1%). On return on invested capital, Boeing (BA) leads (Heico (HEI) 13.5%, Boeing (BA) 18.2%, TransDigm (TDG) 15.5%).

Which stock has performed better?

Over the past year Heico (HEI) returned the most: Heico (HEI) +7.2%, Boeing (BA) -15.3%, TransDigm (TDG) -7.1%. Over five years, Heico (HEI) compounded fastest (Heico (HEI) +19.3%/yr, Boeing (BA) -4.0%/yr, TransDigm (TDG) +13.9%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Only one of these companies pays a dividend: Heico (HEI) 0.00%, Boeing (BA) 0.00%, TransDigm (TDG) 0.00%. Boeing (BA) and TransDigm (TDG) pays no regular dividend.

Which stock is riskier?

By one-year price volatility, TransDigm (TDG) has been the steadiest (Heico (HEI) 33.0%, Boeing (BA) 35.6%, TransDigm (TDG) 28.0%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, HEI, BA and TDG?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Heico (HEI) leads on 5. Business Quant does not give investment advice; use the comparison as a starting point for your own research.

Data from SEC filings, exchange prices and consensus estimates, via Business Quant. Percentile scores compare each company with its own peer group, so two companies' scores are each relative to different peers unless you rank against the whole market. Price returns exclude dividends. Nothing on this page is investment advice.