HTFL vs NNOX vs QDEL Stock Comparison

Heartflow, Nano-X Imaging and QuidelOrtho Prices as of Nov 4, 2026 Peers: Industry group
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HTFL Heartflow, Inc.
$56.57 +8.4% 1M +66.9% 1Y
Market cap
$4.91B
P/E
–
Revenue (TTM)
$212.08M
Div. yield
–
Diagnostic Equipment Healthcare
6 wins
NNOX Nano-X Imaging Ltd.
$0.28 -56.3% 1M -91.4% 1Y
Market cap
$19.49M
P/E
–
Revenue (TTM)
$15.63M
Div. yield
–
Diagnostic Equipment Healthcare
QDEL QuidelOrtho Corp
$14.35 +18.2% 1M -47.1% 1Y
Market cap
$980.11M
P/E
–
Revenue (TTM)
-$211.90M
Div. yield
–
Diagnostic Equipment Healthcare
1 win

Head to Head

7 decided of 12

Heartflow leads on 6 of the 12 questions below (Heartflow 6, QuidelOrtho 1). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionHTFLNNOXQDELLeader
Larger companyMarket capitalisation $4.91B $19.49M $980.11M HTFL
Cheaper on earningsLower P/E, profitable companies only -41.3x -0.2x -0.9x –
Cheaper on forward earningsLower price / next fiscal year consensus EPS — — 19.1x –
Faster revenue growthRevenue growth, trailing twelve months +42.8% +31.5% -30.8% HTFL
More profitableNet margin, trailing twelve months -55.8% -747.2% — HTFL
Better return on capitalReturn on invested capital — -116.9% — –
Less leveragedLower net debt / EBITDA — 0.3x — –
Higher dividend yieldTrailing dividend yield — — — –
Better 1-year returnPrice return, last 12 months +66.9% -91.4% -47.1% HTFL
Better 5-year returnAnnualised price return, 5 years — -59.5%/yr -34.7%/yr QDEL
Less volatileAnnualised volatility, 1 year 76.8% 106.3% 93.2% HTFL
Higher overall scoreMean of the five percentile scores vs peers 49/100 36/100 23/100 HTFL

Percentile Scorecard

HTFLNNOXQDEL

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

AxisHTFLNNOXQDEL
Valuation 28 #166 of 229 54 #107 of 229 46 #125 of 229
Growth 72 #62 of 221 11 #198 of 221 1 #219 of 221
Profitability 42 #121 of 209 9 #190 of 209 –
Financial Health 84 #39 of 240 72 #69 of 240 11 #215 of 240
Shareholder Returns 19 #118 of 146 – 36 #94 of 146
Overall 49 36 23
  • HTFL ranked among 248 companies in Medical Devices and Diagnostics
  • NNOX ranked among 248 companies in Medical Devices and Diagnostics
  • QDEL ranked among 248 companies in Medical Devices and Diagnostics

Price Performance

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

Returns

PeriodHTFLNNOXQDELSPY
1 month +8.4%-56.3%+18.2% -1.0%
3 months +108.2%-72.0%-18.0% -0.4%
6 months +86.8%-84.4%+30.9% +4.5%
Year to date +94.1%-90.0%-49.8% +12.4%
1 year +66.9%-91.4%-47.1% +13.6%
3 years —-95.4%-77.7% +76.4%
3 years, per year —-64.2%-39.4% +20.8%
5 years —-98.9%-88.2% +63.7%
5 years, per year —-59.5%-34.7% +10.4%
10 years ——-23.6% +267.7%
10 years, per year ——-2.7% +13.9%

Risk

MeasureHTFLNNOXQDELSPY
Volatility, 1Y 76.8%106.3%93.2% 12.8%
Downside volatility, 1Y 78.0%118.0%101.1% 12.7%
Beta vs S&P 500, 1Y 1.931.192.57 1.00
Return / volatility, 1Y 0.87-0.86-0.51 1.06
Max drawdown, 5Y -48.7%-99.0%-94.3% -25.4%
From 52-week high -6.5%-93.8%-59.4% -1.6%
52-week high $60.53$4.55$35.38 $779.14
52-week low $20.49$0.28$9.96 $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.

MultipleHTFLNNOXQDEL
P/E now vs peer median -41.3xmedian 28.5x -0.2xmedian 28.5x -0.9xmedian 28.5x
P/S now vs peer median 23.1xmedian 2.9x 1.2xmedian 2.9x -4.6xmedian 2.9x
EV/EBITDA now vs peer median -63.5xmedian 18.5x 0.1xmedian 18.5x —median 18.5x
P/FCF now vs peer median -82.9xmedian 26.7x -0.4xmedian 26.7x -4.6xmedian 26.7x
P/B now vs peer median 17.5xmedian 2.3x 0.3xmedian 2.3x 0.6xmedian 2.3x
PEG now vs peer median —median 0.93 -0.07median 0.93 0.01median 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 monthsHTFLNNOXQDEL
Revenue $212.08M $15.63M -$211.90M
Gross profit $169.83M -$52.76M –
Operating income -$80.25M -$119.69M –
Net income -$118.37M -$116.81M -$1.05B
Free cash flow -$59.18M -$52.09M -$211.20M
R&D $83.84M $18.93M –
EPS (diluted) $-1.37 $-1.80 $-15.35
Cash & equivalents $34.36M $31.02M $123.40M
Total debt – $3.00M $2.89B
Shares (diluted) 86.40M 64.79M 68.30M
Enterprise value $4.66B -$161.32M $448.41M

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
MetricHTFLNNOXQDEL
P/E -41.3x -0.2x -0.9x
P/FCF -82.9x -0.4x -4.6x
P/Operating cash flow -93.9x -0.4x -17.1x
P/S 23.1x 1.2x -4.6x
P/B 17.5x 0.3x 0.6x
P/Tangible book 17.5x 0.3x -1.1x
EV/EBITDA -63.5x 0.1x –
EV/EBIT -58.1x 0.1x –
EV/Revenue 22.0x -0.6x -17.7x
EV/FCF -78.7x 0.2x -17.7x
EV/Operating cash flow -89.2x 0.2x -65.5x
PEG (3Y EPS CAGR) – -0.07 0.01

Growth

14 metrics
MetricHTFLNNOXQDEL
Revenue growth (1Y) 42.8% 31.5% -30.8%
Revenue CAGR (3Y) – 17.7% -27.0%
Gross profit growth (1Y) 51.8% -340.0% –
Gross profit CAGR (3Y) – -101.8% –
Operating income growth (1Y) -29.0% -107.4% –
Operating income CAGR (3Y) – -5.0% –
Net income growth (1Y) -26.4% -109.9% -124.8%
Net income CAGR (3Y) – -4.9% -107.7%
EPS growth (1Y) 90.8% -90.0% -122.8%
EPS CAGR (3Y) – 2.3% -106.5%
Operating cash flow growth (1Y) 19.4% -21.9% -128.5%
Operating cash flow CAGR (3Y) – -2.7% -27.1%
Free cash flow growth (1Y) 13.0% -19.4% -1,725%
Free cash flow CAGR (3Y) – 1.3% -30.1%

Profitability

14 metrics
MetricHTFLNNOXQDEL
Gross margin 80.1% -337.5% –
EBITDA margin -34.6% -692.4% –
Operating margin -37.8% -765.6% –
Pretax margin -55.9% -758.5% –
Net margin -55.8% -747.2% –
FCF margin -27.9% -333.2% –
Operating cash flow margin -24.6% -298.7% 27.0%
Return on equity -41.9% -117.5% –
Return on assets -34.4% -98.6% –
Return on invested capital – -116.9% –
Return on capital employed -26.7% -114.2% –
Asset turnover 0.6x 0.1x 0.0x
Cash conversion (OCF / net income) 0.4x 0.4x 0.1x
Stock comp / revenue 11.2% 34.9% -20.9%

Financial Health

11 metrics
MetricHTFLNNOXQDEL
Debt / assets – 3.3% 50.6%
Debt / equity – 0.0x 1.6x
Net debt / EBITDA – 0.3x –
Debt / FCF – -0.1x -13.7x
Liabilities / assets 18.8% 20.5% 68.9%
Equity / assets 81.2% 79.5% 31.1%
Interest coverage -23.2x – –
Current ratio 5.1x 2.8x 1.4x
Quick ratio 6.6x 2.4x 0.5x
Cash ratio 5.6x 2.3x 0.1x
Altman Z-score 41.34 -11.16 –

Shareholder Returns

7 metrics
MetricHTFLNNOXQDEL
Dividend yield – – –
Net buyback yield -7.0% – -0.5%
Shareholder yield -7.0% – -0.5%
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.

ConsensusHTFLNNOXQDEL
Forward P/E – – 19.1xFY2026
EPS, next fiscal year $-0.43FY2026 $-1.31FY2026 $0.75FY2026
EPS growth, next FY – – -64.6%FY2026
EPS growth, the year after – – +101.3%
Revenue, next fiscal year $261.38MFY2026 $18.64MFY2026 $2.67BFY2026
Revenue growth, next FY +48.5%FY2026 +43.2%FY2026 -2.0%FY2026
Revenue growth, the year after +20.6% +59.6% +0.2%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersHTFLNNOXQDEL
Held by institutions 100.0% 15.0% 100.0%
Institutions holding 193 103 243
Change in shares held, QoQ +133.0% -46.0% +2.9%
Institutions buying 140 55 143
Institutions selling 38 28 65
Buyers to sellers 3.68 1.96 2.20

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.

HTFLNNOXQDEL
HTFL 1.00 0.19 0.16
NNOX 0.19 1.00 0.10
QDEL 0.16 0.10 1.00

Add a Peer

Largest companies in the same industry

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Frequently Asked Questions

Which is bigger, HTFL, NNOX and QDEL?

Heartflow (HTFL) is the largest by market capitalisation: Heartflow (HTFL) $4.91B, Nano-X Imaging (NNOX) $19.49M, QuidelOrtho (QDEL) $980.11M.

Which company is growing faster?

Heartflow (HTFL) grew revenue fastest over the trailing twelve months: Heartflow (HTFL) +42.8%, Nano-X Imaging (NNOX) +31.5%, QuidelOrtho (QDEL) -30.8%.

Which company is more profitable?

Heartflow (HTFL) has the highest net margin (Heartflow (HTFL) -55.8%, Nano-X Imaging (NNOX) -747.2%).

Which stock has performed better?

Over the past year Heartflow (HTFL) returned the most: Heartflow (HTFL) +66.9%, Nano-X Imaging (NNOX) -91.4%, QuidelOrtho (QDEL) -47.1%. Over five years, QuidelOrtho (QDEL) compounded fastest (Nano-X Imaging (NNOX) -59.5%/yr, QuidelOrtho (QDEL) -34.7%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Heartflow (HTFL) has been the steadiest (Heartflow (HTFL) 76.8%, Nano-X Imaging (NNOX) 106.3%, QuidelOrtho (QDEL) 93.2%). Volatility measures how widely the price swings, not the risk of the business.

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

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 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.