RKLB vs TDG Stock Comparison

Rocket Lab and TransDigm Prices as of Oct 23, 2026 Peers: Industry group
RKLB Rocket Lab Corp
$52.60 -25.2% 1M -17.3% 1Y
Market cap
$33.90B
P/E
–
Revenue (TTM)
$769.15M
Div. yield
–
Space Industrials
3 wins
TDG TransDigm Group INC
$1,105.84 +0.1% 1M -18.1% 1Y
Market cap
$64.86B
P/E
33.9x
Revenue (TTM)
$10.01B
Div. yield
–
Commercial Aerospace Industrials
6 wins

Head to Head

9 decided of 12

TransDigm leads on 6 of the 12 questions below (TransDigm 6, Rocket Lab 3). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionRKLBTDGLeader
Larger companyMarket capitalisation $33.90B $64.86B TDG
Cheaper on earningsLower P/E, profitable companies only -204.9x 33.9x –
Cheaper on forward earningsLower price / next fiscal year consensus EPS — 25.1x –
Faster revenue growthRevenue growth, trailing twelve months +52.5% +16.6% RKLB
More profitableNet margin, trailing twelve months -21.5% 19.1% TDG
Better return on capitalReturn on invested capital -6.7% 15.5% TDG
Less leveragedLower net debt / EBITDA 14.4x 6.1x TDG
Higher dividend yieldTrailing dividend yield 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months -17.3% -18.1% RKLB
Better 5-year returnAnnualised price return, 5 years +32.3%/yr +11.3%/yr RKLB
Less volatileAnnualised volatility, 1 year 92.6% 27.1% TDG
Higher overall scoreMean of the five percentile scores vs peers 42/100 66/100 TDG

Percentile Scorecard

RKLBTDG

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

AxisRKLBTDG
Valuation 18 #82 of 100 53 #48 of 100
Growth 50 #49 of 97 67 #33 of 97
Profitability 31 #67 of 96 96 #5 of 96
Financial Health 88 #14 of 106 16 #89 of 106
Shareholder Returns 22 #51 of 65 97 #3 of 65
Overall 42 66
  • RKLB ranked among 107 companies in Aerospace and Defense
  • TDG ranked among 107 companies in Aerospace and Defense

Price Performance

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

Returns

PeriodRKLBTDGSPY
1 month -25.2%+0.1% -1.0%
3 months -17.7%-10.6% +2.9%
6 months -34.0%-3.7% +6.4%
Year to date -24.6%-16.8% +11.4%
1 year -17.3%-18.1% +13.1%
3 years +1,170.5%+33.1% +79.4%
3 years, per year +133.5%+10.0% +21.5%
5 years +304.6%+70.6% +67.7%
5 years, per year +32.3%+11.3% +10.9%
10 years —+320.7% +255.2%
10 years, per year —+15.5% +13.5%

Risk

MeasureRKLBTDGSPY
Volatility, 1Y 92.6%27.1% 12.7%
Downside volatility, 1Y 90.2%28.9% 12.7%
Beta vs S&P 500, 1Y 3.870.74 1.00
Return / volatility, 1Y -0.19-0.67 1.03
Max drawdown, 5Y -78.3%-33.6% -25.4%
From 52-week high -65.0%-23.7% -2.5%
52-week high $150.23$1,450.00 $779.14
52-week low $39.48$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.

MultipleRKLBTDG
P/E now vs peer median -200.2xmedian 26.2x 33.2xmedian 26.2x
P/S now vs peer median 40.9xmedian 2.9x 6.1xmedian 2.9x
EV/EBITDA now vs peer median -182.9xmedian 14.7x 18.1xmedian 14.7x
P/FCF now vs peer median -84.8xmedian 24.9x 31.7xmedian 24.9x
P/B now vs peer median 9.0xmedian 2.4x -6.2xmedian 2.4x
PEG now vs peer median -24.20median 0.92 1.57median 0.92

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 monthsRKLBTDG
Revenue $769.15M $10.01B
Gross profit $286.62M $5.96B
Operating income -$223.49M $4.61B
Net income -$165.46M $2.13B
Free cash flow -$371.14M $1.93B
R&D $312.42M –
EPS (diluted) $-0.26 $33.29
Cash & equivalents $2.13B $2.77B
Total debt $1.72M $33.49B
Shares (diluted) 629.68M 57.40M
Enterprise value $28.22B $52.87B

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
MetricRKLBTDG
P/E -200.2x 33.2x
P/FCF -84.8x 31.7x
P/Operating cash flow -141.4x 27.8x
P/S 40.9x 6.1x
P/B 9.0x -6.2x
P/Tangible book 9.9x -4.2x
EV/EBITDA -182.9x 18.1x
EV/EBIT -130.5x 19.9x
EV/Revenue 37.9x 9.2x
EV/FCF -78.6x 47.7x
EV/Operating cash flow -131.1x 41.8x
PEG (3Y EPS CAGR) -24.20 1.57

Growth

14 metrics
MetricRKLBTDG
Revenue growth (1Y) 52.5% 16.6%
Revenue CAGR (3Y) 49.2% 17.0%
Gross profit growth (1Y) 95.7% 16.9%
Gross profit CAGR (3Y) 109.3% 17.9%
Operating income growth (1Y) -0.5% 16.7%
Operating income CAGR (3Y) -11.7% 19.4%
Net income growth (1Y) 28.5% 10.2%
Net income CAGR (3Y) -0.4% 22.8%
EPS growth (1Y) 41.5% 10.5%
EPS CAGR (3Y) 8.3% 21.1%
Operating cash flow growth (1Y) -100.8% 4.5%
Operating cash flow CAGR (3Y) -44.7% 22.8%
Free cash flow growth (1Y) -81.9% 1.1%
Free cash flow CAGR (3Y) -45.7% 22.4%

Profitability

14 metrics
MetricRKLBTDG
Gross margin 37.3% 59.6%
EBITDA margin -20.7% 50.7%
Operating margin -29.1% 46.0%
Pretax margin -24.9% 27.4%
Net margin -21.5% 19.1%
FCF margin -48.3% 19.3%
Operating cash flow margin -28.9% 22.0%
Return on equity -5.7% –
Return on assets -4.7% 8.2%
Return on invested capital -6.7% 15.5%
Return on capital employed -7.5% 19.6%
Asset turnover 0.2x 0.4x
Cash conversion (OCF / net income) 1.3x 1.0x
Stock comp / revenue 10.6% 1.5%

Financial Health

11 metrics
MetricRKLBTDG
Debt / assets 0.0% 125.2%
Debt / equity 0.0x -3.4x
Net debt / EBITDA 14.4x 6.1x
Debt / FCF 0.0x 17.4x
Liabilities / assets 16.6% 136.7%
Equity / assets 83.4% -36.7%
Interest coverage -13.9x 2.5x
Current ratio 5.5x 3.0x
Quick ratio 4.8x 1.9x
Cash ratio 4.4x 1.1x
Altman Z-score 27.47 1.70

Shareholder Returns

7 metrics
MetricRKLBTDG
Dividend yield – –
Net buyback yield -7.3% 2.7%
Shareholder yield -7.3% 2.7%
Payout ratio (earnings) – –
Payout ratio (FCF) – –
Dividend growth (1Y) – –
Dividend CAGR (3Y) – –

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.

ConsensusRKLBTDG
Forward P/E – 25.1xFY2026
EPS, next fiscal year $-0.28FY2026 $44.02FY2026
EPS growth, next FY – +17.9%FY2026
EPS growth, the year after – +7.9%
Revenue, next fiscal year $917.64MFY2026 $10.01BFY2026
Revenue growth, next FY +52.5%FY2026 +13.4%FY2026
Revenue growth, the year after +52.8% +24.2%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersRKLBTDG
Held by institutions 51.2% 93.2%
Institutions holding 1,128 1,140
Change in shares held, QoQ +10.9% +1.2%
Institutions buying 810 584
Institutions selling 238 367
Buyers to sellers 3.40 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.

RKLBTDG
RKLB 1.00 0.10
TDG 0.10 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, RKLB and TDG?

TransDigm (TDG) is the largest by market capitalisation: Rocket Lab (RKLB) $33.90B, TransDigm (TDG) $64.86B.

Which company is growing faster?

Rocket Lab (RKLB) grew revenue fastest over the trailing twelve months: Rocket Lab (RKLB) +52.5%, TransDigm (TDG) +16.6%.

Which company is more profitable?

TransDigm (TDG) has the highest net margin (Rocket Lab (RKLB) -21.5%, TransDigm (TDG) 19.1%). On return on invested capital, TransDigm (TDG) leads (Rocket Lab (RKLB) -6.7%, TransDigm (TDG) 15.5%).

Which stock has performed better?

Over the past year Rocket Lab (RKLB) returned the most: Rocket Lab (RKLB) -17.3%, TransDigm (TDG) -18.1%. Over five years, Rocket Lab (RKLB) compounded fastest (Rocket Lab (RKLB) +32.3%/yr, TransDigm (TDG) +11.3%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, TransDigm (TDG) has been the steadiest (Rocket Lab (RKLB) 92.6%, TransDigm (TDG) 27.1%). Volatility measures how widely the price swings, not the risk of the business.

Do RKLB and TDG move together?

Their daily returns over the past year have a correlation of 0.10, a weak relationship. Holding both diversifies more than two closely linked stocks would.

Which is the better stock, RKLB 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, TransDigm (TDG) leads on 6. 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.