AMBA vs ECX Stock Comparison

Ambarella and ECARX Holdings Prices as of Oct 26, 2026 Peers: Industry group
AMBA Ambarella Inc
$66.82 -8.1% 1M -22.0% 1Y
Market cap
$2.96B
P/E
–
Revenue (TTM)
$417.80M
Div. yield
–
Semiconductor Design Technology
5 wins
ECX ECARX Holdings Inc.
$0.80 -26.6% 1M -64.9% 1Y
Market cap
$277.73M
P/E
–
Revenue (TTM)
$881.30M
Div. yield
–
Autonomous Driving Technology
2 wins

Head to Head

7 decided of 12

Ambarella leads on 5 of the 12 questions below (Ambarella 5, ECARX Holdings 2). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionAMBAECXLeader
Larger companyMarket capitalisation $2.96B $277.73M AMBA
Cheaper on earningsLower P/E, profitable companies only -52.5x -8.0x –
Cheaper on forward earningsLower price / next fiscal year consensus EPS 86.8x — –
Faster revenue growthRevenue growth, trailing twelve months +20.0% +11.4% AMBA
More profitableNet margin, trailing twelve months -13.5% -3.9% ECX
Better return on capitalReturn on invested capital — -4.6% –
Less leveragedLower net debt / EBITDA — — –
Higher dividend yieldTrailing dividend yield 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months -22.0% -64.9% AMBA
Better 5-year returnAnnualised price return, 5 years -18.1%/yr -39.4%/yr AMBA
Less volatileAnnualised volatility, 1 year 74.6% 82.8% AMBA
Higher overall scoreMean of the five percentile scores vs peers 40/100 77/100 ECX

Percentile Scorecard

AMBAECX

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

AxisAMBAECX
Valuation 31 #66 of 95 100 #1 of 13
Growth 55 #42 of 93 100 #1 of 12
Profitability 26 #68 of 91 100 #1 of 12
Financial Health 59 #42 of 101 8 #12 of 13
Shareholder Returns 31 #52 of 75 –
Overall 40 77
  • AMBA ranked among 104 companies in Semiconductors
  • ECX ranked among 14 companies in Robotics and Automation

Price Performance

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

Returns

PeriodAMBAECXSPY
1 month -8.1%-26.6% -0.8%
3 months -2.1%-25.9% +3.5%
6 months +3.0%-30.4% +7.0%
Year to date -5.7%-53.5% +12.2%
1 year -22.0%-64.9% +13.0%
3 years +42.8%-80.0% +86.3%
3 years, per year +12.6%-41.5% +23.1%
5 years -63.2%-91.8% +68.6%
5 years, per year -18.1%-39.4% +11.0%
10 years +6.9%— +258.0%
10 years, per year +0.7%— +13.6%

Risk

MeasureAMBAECXSPY
Volatility, 1Y 74.6%82.8% 12.7%
Downside volatility, 1Y 79.6%91.2% 12.7%
Beta vs S&P 500, 1Y 2.611.40 1.00
Return / volatility, 1Y -0.29-0.78 1.02
Max drawdown, 5Y -81.7%-92.6% -25.4%
From 52-week high -30.0%-69.7% -1.8%
52-week high $95.51$2.64 $779.14
52-week low $48.65$0.80 $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.

MultipleAMBAECX
P/E now vs peer median -52.2xmedian 42.1x -7.8x
P/S now vs peer median 7.1xmedian 7.1x 0.3xmedian 17.8x
EV/EBITDA now vs peer median -72.0xmedian 27.5x —
P/FCF now vs peer median 303.4xmedian 37.2x —median 14.0x
P/B now vs peer median 4.8xmedian 4.2x -0.9xmedian 1.0x
PEG now vs peer median -2.66median 2.23 -0.16

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 monthsAMBAECX
Revenue $417.80M $881.30M
Gross profit $244.50M $184.00M
Operating income -$62.24M -$8.80M
Net income -$56.32M -$35.90M
Free cash flow $9.72M –
R&D $228.69M $107.60M
EPS (diluted) $-1.28 $-0.10
Cash & equivalents $101.85M $156.16M
Total debt – $556.66M
Shares (diluted) 44.01M 338.66M
Enterprise value $1.80B -$14.88M

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
MetricAMBAECX
P/E -52.2x -7.8x
P/FCF 303.4x –
P/Operating cash flow 107.9x –
P/S 7.1x 0.3x
P/B 4.8x -0.9x
P/Tangible book 5.2x -0.8x
EV/EBITDA -72.0x –
EV/EBIT -43.0x -73.7x
EV/Revenue 6.4x 0.7x
EV/FCF 275.4x –
EV/Operating cash flow 98.0x –
PEG (3Y EPS CAGR) -2.66 -0.16

Growth

14 metrics
MetricAMBAECX
Revenue growth (1Y) 20.0% 11.4%
Revenue CAGR (3Y) 12.9% 15.7%
Gross profit growth (1Y) 17.4% 29.9%
Gross profit CAGR (3Y) 11.3% 6.1%
Operating income growth (1Y) 36.9% 92.7%
Operating income CAGR (3Y) 18.4% 63.2%
Net income growth (1Y) 36.4% 74.6%
Net income CAGR (3Y) 16.9% 41.5%
EPS growth (1Y) 38.6% 74.4%
EPS CAGR (3Y) 19.6% 47.8%
Operating cash flow growth (1Y) -47.8% –
Operating cash flow CAGR (3Y) 1.3% –
Free cash flow growth (1Y) -73.7% –
Free cash flow CAGR (3Y) -5.8% –

Profitability

14 metrics
MetricAMBAECX
Gross margin 58.5% 20.9%
EBITDA margin -8.9% –
Operating margin -14.9% -1.0%
Pretax margin -12.9% -2.2%
Net margin -13.5% -3.9%
FCF margin 2.3% –
Operating cash flow margin 6.5% –
Return on equity -9.2% –
Return on assets -7.2% -4.2%
Return on invested capital – -4.6%
Return on capital employed -9.6% –
Asset turnover 0.5x 1.0x
Cash conversion (OCF / net income) -0.5x –
Stock comp / revenue 21.9% –

Financial Health

11 metrics
MetricAMBAECX
Debt / assets – 56.5%
Debt / equity – -2.1x
Net debt / EBITDA – –
Debt / FCF – –
Liabilities / assets 20.5% 127.0%
Equity / assets 79.5% -27.0%
Interest coverage – -0.3x
Current ratio 2.8x 0.7x
Quick ratio 2.2x 0.5x
Cash ratio 2.0x 0.2x
Altman Z-score 11.10 -1.07

Shareholder Returns

7 metrics
MetricAMBAECX
Dividend yield – –
Net buyback yield -0.1% –
Shareholder yield -0.1% –
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.

ConsensusAMBAECX
Forward P/E 86.8xFY2026 –
EPS, next fiscal year $0.77FY2026 $-0.02FY2026
EPS growth, next FY +24.2%FY2026 –
EPS growth, the year after +40.3% –
Revenue, next fiscal year $454.23MFY2026 $1.10BFY2026
Revenue growth, next FY +16.3%FY2026 +31.2%FY2026
Revenue growth, the year after +3.4% +25.0%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersAMBAECX
Held by institutions 81.7% 5.2%
Institutions holding 337 39
Change in shares held, QoQ -1.5% +3.3%
Institutions buying 203 23
Institutions selling 89 8
Buyers to sellers 2.28 2.88

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.

AMBAECX
AMBA 1.00 0.08
ECX 0.08 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, AMBA and ECX?

Ambarella (AMBA) is the largest by market capitalisation: Ambarella (AMBA) $2.96B, ECARX Holdings (ECX) $277.73M.

Which company is growing faster?

Ambarella (AMBA) grew revenue fastest over the trailing twelve months: Ambarella (AMBA) +20.0%, ECARX Holdings (ECX) +11.4%.

Which company is more profitable?

ECARX Holdings (ECX) has the highest net margin (Ambarella (AMBA) -13.5%, ECARX Holdings (ECX) -3.9%).

Which stock has performed better?

Over the past year Ambarella (AMBA) returned the most: Ambarella (AMBA) -22.0%, ECARX Holdings (ECX) -64.9%. Over five years, Ambarella (AMBA) compounded fastest (Ambarella (AMBA) -18.1%/yr, ECARX Holdings (ECX) -39.4%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Ambarella (AMBA) has been the steadiest (Ambarella (AMBA) 74.6%, ECARX Holdings (ECX) 82.8%). Volatility measures how widely the price swings, not the risk of the business.

Do AMBA and ECX move together?

Their daily returns over the past year have a correlation of 0.08, a weak relationship. Holding both diversifies more than two closely linked stocks would.

Which is the better stock, AMBA and ECX?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Ambarella (AMBA) 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.