DGX compared with CSTL: revenue, margins and what each company keeps, and the suppliers and customers both name

DGXQuest Diagnostics Inc

Mkt capRevenueRevenue

CSTLCastle Biosciences Inc

Mkt capRevenueRevenue

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DGXQuest Diagnostics Inc

CSTLCastle Biosciences Inc

Price

Mkt cap

Revenue

Revenue flow Supply chain Price Co-movers Event sensitivity Earnings history

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Revenue flow

News Findings Companies A–Z Pricing Methodology Sources Corrections About Terms

Not investment advice. Not a broker-dealer. Indices shown as ETF proxies. Supply-chain data CC BY 4.0; market data not redistributable.

Listed on One’s Vibe · live-checked · Oct ’26

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DGXQuest Diagnostics Inc

251.71· pre 252.26· delayed

Mkt cap$27.7BRevenue$3.1BQ3 FY26Revenue$11.0BFY25

CSTLCastle Biosciences Inc

38.47· pre 37.19

Pre-marketSep 2 '83

Mkt cap$1.1BRevenue$104MQ2 FY26Revenue$344MFY25

Compare

Pre-marketSep 2 '83

DGXQuest Diagnostics Inc

CSTLCastle Biosciences Inc

251.71pre 252.26delayed

Price

38.47pre 37.19

$27.7B

Mkt cap

$1.1B

Q3 FY26$3.1B

Revenue

$104MQ2 FY26

FY25$11.0B

Revenue

$344MFY25

DGX251.71vsCSTL38.47Pre-marketSep 2 '83

Revenue flow Supply chain Price Co-movers Event sensitivity Earnings history

Price

Supply-chain overlap

Revenue flow

CSTL: latest quarter is a loss; flow not drawable.Method ›

Price

rebased to 0%

DGX, solidCSTL, dashed

Supply-chain overlap

direct ties · both sidesSources ›

direct ties · both sides

Only DGX 1

GRALGrailcustomer

Shared 0

No shared counterparties.

Only CSTL 13

—Medicareunlistedcustomer

TMOThermoFisher Scientificsupplier

QGENQiagensupplier

—The Washington University in St. Louis, Missouri (WUSTL)

Role chip = supplier or customer—= no ticker (unlisted)Source: SEC EDGAR

unlistedsupplier

9 more · CSTL chain ›