DGX vs GRAL vs BLLN Stock Comparison

Quest Diagnostics, Grail and BillionToOne Prices as of Oct 28, 2026 Peers: Industry group
DGX Quest Diagnostics Inc
$245.73 +3.4% 1M +37.8% 1Y
Market cap
$27.75B
P/E
24.6x
Revenue (TTM)
$11.84B
Div. yield
0.01%
Diagnostic Labs Healthcare
7 wins
GRAL GRAIL, Inc.
$157.88 +19.0% 1M +82.8% 1Y
Market cap
$6.81B
P/E
–
Revenue (TTM)
$157.21M
Div. yield
–
Diagnostic Labs Healthcare
1 win
BLLN BillionToOne, Inc.
$114.00 -6.3% 1M
Market cap
$5.32B
P/E
176.9x
Revenue (TTM)
$397.41M
Div. yield
–
Diagnostic Labs Healthcare
2 wins

Head to Head

10 decided of 12

Quest Diagnostics leads on 7 of the 12 questions below (Quest Diagnostics 7, BillionToOne 2, Grail 1). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionDGXGRALBLLNLeader
Larger companyMarket capitalisation $27.75B $6.81B $5.32B DGX
Cheaper on earningsLower P/E, profitable companies only 24.6x -17.4x 176.9x DGX
Cheaper on forward earningsLower price / next fiscal year consensus EPS 22.4x — 150.0x DGX
Faster revenue growthRevenue growth, trailing twelve months +9.1% +17.1% +90.1% BLLN
More profitableNet margin, trailing twelve months 9.5% -249.1% 7.6% DGX
Better return on capitalReturn on invested capital 9.9% — 7.0% DGX
Less leveragedLower net debt / EBITDA 2.1x — -9.1x BLLN
Higher dividend yieldTrailing dividend yield 0.01% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +37.8% +82.8% — GRAL
Better 5-year returnAnnualised price return, 5 years +10.9%/yr — — –
Less volatileAnnualised volatility, 1 year 23.7% 111.4% 94.3% DGX
Higher overall scoreMean of the five percentile scores vs peers 64/100 43/100 57/100 DGX

Percentile Scorecard

DGXGRALBLLN

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

AxisDGXGRALBLLN
Valuation 70 #28 of 92 8 #85 of 92 21 #73 of 92
Growth 38 #54 of 87 58 #37 of 87 100 #1 of 87
Profitability 79 #19 of 86 6 #81 of 86 61 #34 of 86
Financial Health 55 #44 of 97 99 #2 of 97 96 #5 of 97
Shareholder Returns 76 #14 of 55 – 7 #51 of 55
Overall 64 43 57
  • DGX ranked among 102 companies in Healthcare Providers
  • GRAL ranked among 102 companies in Healthcare Providers
  • BLLN ranked among 102 companies in Healthcare Providers

Price Performance

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

Returns

PeriodDGXGRALBLLNSPY
1 month +3.4%+19.0%-6.3% +0.9%
3 months +4.5%+148.9%-14.0% +5.9%
6 months +29.8%+217.7%+54.7% +8.5%
Year to date +41.6%+84.5%+39.3% +13.3%
1 year +37.8%+82.8%— +12.4%
3 years +92.5%—— +88.1%
3 years, per year +24.4%—— +23.5%
5 years +67.4%—— +68.2%
5 years, per year +10.9%—— +11.0%
10 years +205.5%—— +263.4%
10 years, per year +11.8%—— +13.8%

Risk

MeasureDGXGRALBLLNSPY
Volatility, 1Y 23.7%111.4%94.3% 12.7%
Downside volatility, 1Y 18.8%126.1%107.3% 12.7%
Beta vs S&P 500, 1Y -0.092.691.66 1.00
Return / volatility, 1Y 1.590.74— 0.98
Max drawdown, 5Y -30.3%-62.9%-50.8% -25.4%
From 52-week high -0.7%0.0%-24.0% -0.9%
52-week high $247.47$157.88$149.97 $779.14
52-week low $173.49$43.03$64.03 $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.

MultipleDGXGRALBLLN
P/E now vs peer median 23.9xmedian 25.6x -17.4xmedian 25.6x 176.0xmedian 25.6x
P/S now vs peer median 2.3xmedian 1.6x 44.9xmedian 1.6x 13.4xmedian 1.6x
EV/EBITDA now vs peer median 13.8xmedian 16.3x -15.3xmedian 16.3x 97.1xmedian 16.3x
P/FCF now vs peer median 19.7xmedian 21.3x -23.8xmedian 21.3x 160.9xmedian 21.3x
P/B now vs peer median 3.4xmedian 3.3x 2.8xmedian 3.3x 9.9xmedian 3.3x
PEG now vs peer median 1.64median 0.68 —median 0.68 —median 0.68

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 monthsDGXGRALBLLN
Revenue $11.84B $157.21M $397.41M
Gross profit $3.92B $75.51M $283.22M
Operating income $1.72B -$559.25M $43.30M
Net income $1.18B -$391.59M $37.71M
Free cash flow $1.38B -$296.16M $33.18M
R&D – $190.72M $59.21M
EPS (diluted) $10.08 $-9.08 $0.55
Cash & equivalents $797.00M $55.65M $548.63M
Total debt $5.55B – $91.03M
Shares (diluted) 112.00M 43.11M 54.46M
Enterprise value $25.51B $3.68B $3.54B

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
MetricDGXGRALBLLN
P/E 23.9x -17.4x 176.0x
P/FCF 19.7x -23.8x 160.9x
P/Operating cash flow 13.9x -23.9x 117.7x
P/S 2.3x 44.9x 13.4x
P/B 3.4x 2.8x 9.9x
P/Tangible book 4.3x 9.3x 9.9x
EV/EBITDA 13.8x -15.3x 97.1x
EV/EBIT 18.4x -11.1x 112.7x
EV/Revenue 2.7x 39.4x 12.3x
EV/FCF 23.1x -20.9x 147.1x
EV/Operating cash flow 16.3x -21.0x 107.6x
PEG (3Y EPS CAGR) 1.64 – –

Growth

14 metrics
MetricDGXGRALBLLN
Revenue growth (1Y) 9.1% 17.1% 90.1%
Revenue CAGR (3Y) 8.4% – –
Gross profit growth (1Y) 8.5% 30.2% 122.4%
Gross profit CAGR (3Y) 8.4% – –
Operating income growth (1Y) 12.5% 11.6% 253.2%
Operating income CAGR (3Y) 15.1% – –
Net income growth (1Y) 15.0% 11.6% 223.2%
Net income CAGR (3Y) 12.9% – –
EPS growth (1Y) 17.6% 26.6% 118.7%
EPS CAGR (3Y) 14.6% – –
Operating cash flow growth (1Y) 3.5% 20.3% –
Operating cash flow CAGR (3Y) 21.8% – –
Free cash flow growth (1Y) -1.3% 20.3% –
Free cash flow CAGR (3Y) 32.1% – –

Profitability

14 metrics
MetricDGXGRALBLLN
Gross margin 33.1% 48.0% 71.3%
EBITDA margin 19.5% -257.6% 12.6%
Operating margin 14.6% -355.7% 10.9%
Pretax margin 12.6% -336.8% 9.5%
Net margin 9.5% -249.1% 7.6%
FCF margin 11.6% -188.4% 8.3%
Operating cash flow margin 16.5% -187.5% 11.4%
Return on equity 15.0% -15.5% 7.2%
Return on assets 6.9% -13.9% 5.3%
Return on invested capital 9.9% – 7.0%
Return on capital employed 11.3% -20.4% 6.6%
Asset turnover 0.7x 0.1x 0.6x
Cash conversion (OCF / net income) 1.7x 0.8x 1.2x
Stock comp / revenue 0.7% 40.9% 6.4%

Financial Health

11 metrics
MetricDGXGRALBLLN
Debt / assets 32.2% – 12.5%
Debt / equity 0.7x – 0.2x
Net debt / EBITDA 2.1x – -9.1x
Debt / FCF 4.0x – 2.7x
Liabilities / assets 53.8% 10.6% 26.4%
Equity / assets 46.2% 89.4% 73.6%
Interest coverage 6.5x – 1,056x
Current ratio 1.7x 10.9x 11.7x
Quick ratio 1.4x 10.6x 11.2x
Cash ratio 0.4x 10.3x 9.8x
Altman Z-score 3.72 8.68 17.85

Shareholder Returns

7 metrics
MetricDGXGRALBLLN
Dividend yield 1.4% – –
Net buyback yield 1.2% – -5.7%
Shareholder yield 2.6% – -5.7%
Payout ratio (earnings) 31.3% – –
Payout ratio (FCF) 26.8% – –
Dividend growth (1Y) 6.3% – –
Dividend CAGR (3Y) 6.1% – –

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.

ConsensusDGXGRALBLLN
Forward P/E 22.4xFY2026 – 150.0xFY2026
EPS, next fiscal year $10.96FY2026 $-9.05FY2026 $0.76FY2026
EPS growth, next FY +11.3%FY2026 – +442.9%FY2026
EPS growth, the year after +6.8% – +22.4%
Revenue, next fiscal year $11.25BFY2026 $169.78MFY2026 $481.76MFY2026
Revenue growth, next FY +1.9%FY2026 +15.4%FY2026 +57.9%FY2026
Revenue growth, the year after +7.7% +38.2% +27.1%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersDGXGRALBLLN
Held by institutions 94.4% 85.4% 36.1%
Institutions holding 1,096 372 155
Change in shares held, QoQ +2.7% +8.4% +34.7%
Institutions buying 549 182 127
Institutions selling 341 100 13
Buyers to sellers 1.61 1.82 9.77

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.

DGXGRALBLLN
DGX 1.00 0.08 0.10
GRAL 0.08 1.00 0.35
BLLN 0.10 0.35 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, DGX, GRAL and BLLN?

Quest Diagnostics (DGX) is the largest by market capitalisation: Quest Diagnostics (DGX) $27.75B, Grail (GRAL) $6.81B, BillionToOne (BLLN) $5.32B.

Which stock is cheaper, DGX, GRAL and BLLN?

Quest Diagnostics (DGX) trades on the lowest price-to-earnings ratio (Quest Diagnostics (DGX) 24.6x, Grail (GRAL) -17.4x, BillionToOne (BLLN) 176.9x). On next year's consensus earnings, Quest Diagnostics (DGX) is cheapest (Quest Diagnostics (DGX) 22.4x, BillionToOne (BLLN) 150.0x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

BillionToOne (BLLN) grew revenue fastest over the trailing twelve months: Quest Diagnostics (DGX) +9.1%, Grail (GRAL) +17.1%, BillionToOne (BLLN) +90.1%.

Which company is more profitable?

Quest Diagnostics (DGX) has the highest net margin (Quest Diagnostics (DGX) 9.5%, Grail (GRAL) -249.1%, BillionToOne (BLLN) 7.6%). On return on invested capital, Quest Diagnostics (DGX) leads (Quest Diagnostics (DGX) 9.9%, BillionToOne (BLLN) 7.0%).

Which stock has performed better?

Over the past year Grail (GRAL) returned the most: Quest Diagnostics (DGX) +37.8%, Grail (GRAL) +82.8%. Returns are price only, before dividends.

Which pays a higher dividend?

Only one of these companies pays a dividend: Quest Diagnostics (DGX) 0.01%, Grail (GRAL) 0.00%, BillionToOne (BLLN) 0.00%. Grail (GRAL) and BillionToOne (BLLN) pays no regular dividend.

Which stock is riskier?

By one-year price volatility, Quest Diagnostics (DGX) has been the steadiest (Quest Diagnostics (DGX) 23.7%, Grail (GRAL) 111.4%, BillionToOne (BLLN) 94.3%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, DGX, GRAL and BLLN?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Quest Diagnostics (DGX) leads on 7. 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.