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DGX compared with CSTL: revenue, margins and what each company keeps, and the suppliers and customers both name
DGX
Quest Diagnostics Inc
Change
Mkt cap
Revenue
Revenue
CSTL
Castle Biosciences Inc
Change
Mkt cap
Revenue
Revenue
vs
Compare
DGX
Quest Diagnostics Inc
vs
CSTL
Castle Biosciences Inc
Price
Mkt cap
Revenue
Revenue
Change
Change
Revenue flow
Supply chain
Price
Co-movers
Event sensitivity
Earnings history
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Co-movers
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Co-movers
daily closes
Method
›
Moved together
DGX
with
CSTL
Uncorrelated: r 0.12 · 500D.
No shared co-movers.
DGX, solid
CSTL, hatched
r = correlation
Bar = r to r 0.75
Source: daily closes
DGX
Quest Diagnostics Inc
Change
250.40
▼
−0.56%
Mkt cap
$27.7B
Revenue
$3.1B
Q3 FY26
Revenue
$11.0B
FY25
CSTL
Castle Biosciences Inc
Change
34.74
▼
−6.51%
Regular session
Nov 2 '26
Mkt cap
$1.1B
Revenue
$104M
Q2 FY26
Revenue
$344M
FY25
vs
Compare
Regular session
Nov 2 '26
DGX
Quest Diagnostics Inc
vs
CSTL
Castle Biosciences Inc
250.40
▼
−0.56%
Price
34.74
▼
−6.51%
$27.7B
Mkt cap
$1.1B
Q3 FY26
$3.1B
Revenue
$104M
Q2 FY26
FY25
$11.0B
Revenue
$344M
FY25
Change
Change
DGX
250.40
▼
−0.56%
vs
CSTL
34.74
▼
−6.51%
Regular session
Nov 2 '26