DGX Quest Diagnostics Inc.

together opposite · bar = ρ at each lag, −10 … 0 … +10 days · holdout ρ · click a card for the full picture

DGX vs LH

Both indexed to 100 at 2026-05-11.

DGX LH · range 98–145 · 2026-05-11 → 2026-11-06

Same day, ranked by what's left after the market and sector factors are removed ("beyond mkt").

LH Labcorp Holdings Inc.

ρ +0.74beyond mkt +0.66holdout +0.77stable 100%robust

HSIC Henry Schein, Inc. Common Stock

ρ +0.36beyond mkt +0.18holdout +0.36stable 100%robust

JNJ Johnson & Johnson

ρ +0.43beyond mkt +0.16holdout +0.43stable 88%robust

ECL Ecolab, Inc.

ρ +0.42beyond mkt +0.14holdout +0.35stable 100%robust

XLV State Street Health Care Select Sector SPDR ETF

ρ +0.46beyond mkt +0.14holdout +0.51stable 100%robust

ABT Abbott Laboratories

ρ +0.39beyond mkt +0.14holdout +0.26stable 100%robust

Biggest shifts in same-day correlation over the last 63 trading days versus the year before.

PNW Pinnacle West Capital Corporation

Δ -0.66recent -0.20prior +0.46beyond mkt +0.09

POR Portland General Electric Company

Δ -0.54recent -0.14prior +0.41beyond mkt +0.05

EVRG Evergy, Inc. Common Stock

Δ -0.54recent -0.11prior +0.43beyond mkt +0.07

WEC WEC Energy Group, Inc.

Δ -0.53recent -0.09prior +0.44beyond mkt +0.04

AEP American Electric Power Company, Inc. Common Stock

Δ -0.53recent -0.18prior +0.34beyond mkt -0.02

SPHR Sphere Entertainment Co.

Δ +0.51recent +0.47prior -0.04beyond mkt -0.06

Strong beyond-the-market co-movement with few shared neighbours.

Symbol	beyond mkt	raw ρ	shared	isolation
LH Labcorp Holdings Inc.	+0.66	+0.74	18