HTFL vs NNOX vs VREX Stock Comparison

Heartflow, Nano-X Imaging and Varex Imaging Prices as of Oct 28, 2026 Peers: Industry group
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HTFL Heartflow, Inc.
$59.10 +18.4% 1M +54.3% 1Y
Market cap
$5.15B
P/E
–
Revenue (TTM)
$202.91M
Div. yield
–
Diagnostic Equipment Healthcare
4 wins
NNOX Nano-X Imaging Ltd.
$0.32 -49.2% 1M -91.8% 1Y
Market cap
$19.14M
P/E
–
Revenue (TTM)
$15.63M
Div. yield
–
Diagnostic Equipment Healthcare
1 win
VREX Varex Imaging Corp
$18.45 -0.1% 1M +48.1% 1Y
Market cap
$776.75M
P/E
35.1x
Revenue (TTM)
$865.00M
Div. yield
–
Diagnostic Equipment Healthcare
4 wins

Head to Head

9 decided of 12

Heartflow leads on 4 of the 12 questions below (Heartflow 4, Varex Imaging 4, Nano-X Imaging 1). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionHTFLNNOXVREXLeader
Larger companyMarket capitalisation $5.15B $19.14M $776.75M HTFL
Cheaper on earningsLower P/E, profitable companies only -51.4x -0.2x 35.1x –
Cheaper on forward earningsLower price / next fiscal year consensus EPS — — 21.2x –
Faster revenue growthRevenue growth, trailing twelve months +42.5% +31.5% +5.3% HTFL
More profitableNet margin, trailing twelve months -49.4% -747.2% 2.6% VREX
Better return on capitalReturn on invested capital — -116.9% 6.9% VREX
Less leveragedLower net debt / EBITDA — 0.3x 2.5x NNOX
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +54.3% -91.8% +48.1% HTFL
Better 5-year returnAnnualised price return, 5 years — -57.4%/yr -7.2%/yr VREX
Less volatileAnnualised volatility, 1 year 76.8% 105.8% 57.4% VREX
Higher overall scoreMean of the five percentile scores vs peers 57/100 36/100 51/100 HTFL

Percentile Scorecard

HTFLNNOXVREX

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

AxisHTFLNNOXVREX
Valuation 9 #206 of 227 52 #110 of 227 86 #32 of 227
Growth 77 #51 of 219 10 #197 of 219 24 #167 of 219
Profitability 49 #106 of 205 10 #185 of 205 67 #69 of 205
Financial Health 92 #21 of 237 70 #71 of 237 42 #138 of 237
Shareholder Returns – – 34 #89 of 135
Overall 57 36 51
  • HTFL ranked among 247 companies in Medical Devices and Diagnostics
  • NNOX ranked among 247 companies in Medical Devices and Diagnostics
  • VREX ranked among 247 companies in Medical Devices and Diagnostics

Price Performance

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

Returns

PeriodHTFLNNOXVREXSPY
1 month +18.4%-49.2%-0.1% +0.9%
3 months +136.0%-63.6%+68.5% +5.9%
6 months +100.1%-81.3%+67.3% +8.5%
Year to date +102.7%-88.6%+58.4% +13.3%
1 year +54.3%-91.8%+48.1% +12.4%
3 years —-93.6%+6.6% +88.1%
3 years, per year —-60.1%+2.2% +23.5%
5 years —-98.6%-31.3% +68.2%
5 years, per year —-57.4%-7.2% +11.0%

Risk

MeasureHTFLNNOXVREXSPY
Volatility, 1Y 76.8%105.8%57.4% 12.7%
Downside volatility, 1Y 77.8%116.6%49.8% 12.7%
Beta vs S&P 500, 1Y 1.901.371.10 1.00
Return / volatility, 1Y 0.71-0.870.84 0.98
Max drawdown, 5Y -48.7%-98.8%-78.8% -25.4%
From 52-week high 0.0%-93.0%-0.7% -0.9%
52-week high $59.10$4.55$18.58 $779.14
52-week low $20.49$0.32$9.32 $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.

MultipleHTFLNNOXVREX
P/E now vs peer median -51.0xmedian 28.8x -0.2xmedian 28.8x 35.1xmedian 28.8x
P/S now vs peer median 25.3xmedian 3.0x 1.4xmedian 3.0x 0.9xmedian 3.0x
EV/EBITDA now vs peer median —median 17.4x 0.1xmedian 17.4x 10.2xmedian 17.4x
P/FCF now vs peer median —median 25.7x -0.4xmedian 25.7x -38.5xmedian 25.7x
P/B now vs peer median 18.3xmedian 2.4x 0.3xmedian 2.4x 1.5xmedian 2.4x
PEG now vs peer median —median 1.03 -0.08median 1.03 -9.17median 1.03

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 monthsHTFLNNOXVREX
Revenue $202.91M $15.63M $865.00M
Gross profit $160.45M -$52.76M $296.90M
Operating income -$64.46M -$119.69M $72.20M
Net income -$100.19M -$116.81M $22.40M
Free cash flow – -$52.09M -$20.20M
R&D $77.26M $18.93M $91.40M
EPS (diluted) $-1.16 $-1.80 $0.52
Cash & equivalents $34.36M $31.02M $99.20M
Total debt – $3.00M $347.10M
Shares (diluted) 86.40M 64.79M 42.60M
Enterprise value $4.91B -$160.54M $308.55M

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
MetricHTFLNNOXVREX
P/E -51.0x -0.2x 35.1x
P/FCF – -0.4x -38.5x
P/Operating cash flow – -0.5x 68.8x
P/S 25.3x 1.4x 0.9x
P/B 18.3x 0.3x 1.5x
P/Tangible book 18.3x 0.4x 1.6x
EV/EBITDA – 0.1x 10.2x
EV/EBIT -75.7x 0.0x 14.2x
EV/Revenue 24.0x -0.4x 1.2x
EV/FCF – 0.1x -50.8x
EV/Operating cash flow – 0.1x 90.8x
PEG (3Y EPS CAGR) – -0.08 -9.17

Growth

14 metrics
MetricHTFLNNOXVREX
Revenue growth (1Y) 42.5% 31.5% 5.3%
Revenue CAGR (3Y) – 17.7% -1.2%
Gross profit growth (1Y) 48.8% -340.0% 6.1%
Gross profit CAGR (3Y) – -101.8% 1.2%
Operating income growth (1Y) -9.5% -107.4% 297.8%
Operating income CAGR (3Y) – -5.0% -2.3%
Net income growth (1Y) -18.3% -109.9% 116.7%
Net income CAGR (3Y) – -4.9% -9.2%
EPS growth (1Y) 91.4% -90.0% 116.1%
EPS CAGR (3Y) – 2.3% -3.8%
Operating cash flow growth (1Y) – -21.9% -81.1%
Operating cash flow CAGR (3Y) – -2.7% -47.6%
Free cash flow growth (1Y) – -19.4% -155.5%
Free cash flow CAGR (3Y) – 1.3% -33.5%

Profitability

14 metrics
MetricHTFLNNOXVREX
Gross margin 79.1% -337.5% 34.3%
EBITDA margin – -692.4% 11.7%
Operating margin -31.8% -765.6% 8.3%
Pretax margin -49.4% -758.5% 3.2%
Net margin -49.4% -747.2% 2.6%
FCF margin – -333.2% -2.3%
Operating cash flow margin – -298.7% 1.3%
Return on equity -34.5% -117.5% 4.5%
Return on assets -28.5% -98.6% 2.1%
Return on invested capital – -116.9% 6.9%
Return on capital employed -20.9% -114.2% 8.0%
Asset turnover 0.6x 0.1x 0.8x
Cash conversion (OCF / net income) – 0.4x 0.5x
Stock comp / revenue 9.6% 34.9% 1.7%

Financial Health

11 metrics
MetricHTFLNNOXVREX
Debt / assets – 3.3% 31.6%
Debt / equity – 0.0x 0.7x
Net debt / EBITDA – 0.3x 2.5x
Debt / FCF – -0.1x -17.2x
Liabilities / assets 18.8% 20.5% 53.6%
Equity / assets 81.2% 79.5% 46.4%
Interest coverage – – 1.9x
Current ratio 5.1x 2.8x 3.4x
Quick ratio 6.6x 2.4x 1.3x
Cash ratio 5.6x 2.3x 0.5x
Altman Z-score 43.50 -11.07 2.29

Shareholder Returns

7 metrics
MetricHTFLNNOXVREX
Dividend yield – – –
Net buyback yield – – -0.4%
Shareholder yield – – -0.4%
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.

ConsensusHTFLNNOXVREX
Forward P/E – – 21.2xFY2026
EPS, next fiscal year $-0.43FY2026 $-1.31FY2026 $0.87FY2026
EPS growth, next FY – – -3.3%FY2026
EPS growth, the year after – – +14.9%
Revenue, next fiscal year $261.38MFY2026 $18.64MFY2026 $829.68MFY2026
Revenue growth, next FY +48.5%FY2026 +43.2%FY2026 -1.8%FY2026
Revenue growth, the year after +20.6% +59.6% +2.3%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersHTFLNNOXVREX
Held by institutions 100.0% 14.9% 95.2%
Institutions holding 192 102 186
Change in shares held, QoQ +133.0% -46.0% -2.7%
Institutions buying 140 55 98
Institutions selling 38 28 58
Buyers to sellers 3.68 1.96 1.69

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.

HTFLNNOXVREX
HTFL 1.00 0.19 0.18
NNOX 0.19 1.00 0.14
VREX 0.18 0.14 1.00

Add a Peer

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Frequently Asked Questions

Which is bigger, HTFL, NNOX and VREX?

Heartflow (HTFL) is the largest by market capitalisation: Heartflow (HTFL) $5.15B, Nano-X Imaging (NNOX) $19.14M, Varex Imaging (VREX) $776.75M.

Which company is growing faster?

Heartflow (HTFL) grew revenue fastest over the trailing twelve months: Heartflow (HTFL) +42.5%, Nano-X Imaging (NNOX) +31.5%, Varex Imaging (VREX) +5.3%.

Which company is more profitable?

Varex Imaging (VREX) has the highest net margin (Heartflow (HTFL) -49.4%, Nano-X Imaging (NNOX) -747.2%, Varex Imaging (VREX) 2.6%). On return on invested capital, Varex Imaging (VREX) leads (Nano-X Imaging (NNOX) -116.9%, Varex Imaging (VREX) 6.9%).

Which stock has performed better?

Over the past year Heartflow (HTFL) returned the most: Heartflow (HTFL) +54.3%, Nano-X Imaging (NNOX) -91.8%, Varex Imaging (VREX) +48.1%. Over five years, Varex Imaging (VREX) compounded fastest (Nano-X Imaging (NNOX) -57.4%/yr, Varex Imaging (VREX) -7.2%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Varex Imaging (VREX) has been the steadiest (Heartflow (HTFL) 76.8%, Nano-X Imaging (NNOX) 105.8%, Varex Imaging (VREX) 57.4%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, HTFL, NNOX and VREX?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Heartflow (HTFL) leads on 4. 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.