BDX Becton, Dickinson and Co.

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

BDX vs IHI

Both indexed to 100 at 2026-05-11.

BDX IHI · range 99–151 · 2026-05-11 → 2026-11-06

These tend to repeat BDX's moves later.

RGCO RGC Resources Inc. Common Stock

lag 1dρ -0.20holdout -0.12stable 88%$/day $228krobust

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

IHI iShares U.S. Medical Devices ETF

ρ +0.66beyond mkt +0.40holdout +0.73stable 100%robust

XHE State Street SPDR S&P Health Care Equipment ETF

ρ +0.62beyond mkt +0.36holdout +0.66stable 100%robust

STE STERIS plc

ρ +0.62beyond mkt +0.32holdout +0.68stable 100%robust

MDT Medtronic plc

ρ +0.57beyond mkt +0.31holdout +0.68stable 100%robust

ZBH Zimmer Biomet Holdings, Inc.

ρ +0.58beyond mkt +0.30holdout +0.61stable 100%robust

SYK Stryker Corporation

ρ +0.55beyond mkt +0.27holdout +0.59stable 100%robust

No day-to-day relationship, but 5- or 10-day returns move together.

NSIT Insight Enterprises, Inc. Common Stock

horizon 10dρ +0.37holdout +0.38stable 88%robust

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

MTRN Materion Corporation

Δ -0.68recent -0.43prior +0.25beyond mkt -0.01

MSM MSC Industrial Direct Co., Inc. Class A

Δ -0.67recent -0.29prior +0.38beyond mkt +0.03

NSIT Insight Enterprises, Inc. Common Stock

Δ -0.59recent -0.25prior +0.34beyond mkt +0.05

AVT Avnet, Inc. Common Stock

Δ -0.57recent -0.34prior +0.24beyond mkt +0.06

KE Kimball Electronics, Inc. Common Stock

Δ -0.57recent -0.39prior +0.18beyond mkt -0.04

MBCE Monarch Blue Chips Elite Index ETF

Δ -0.57recent -0.30prior +0.27beyond mkt -0.01

Abnormal volume rises and falls on the same days as BDX's, while prices do not move together: the same hands, not the same business.

Symbol	traded together ρ	big prints together ρ	priced together ρ	q
G GENPACT LIMITED	+0.40	+0.36	+0.06	<1e-15
ODD ODDITY Tech Ltd. Class A Ordinary Shares	+0.44	+0.22	+0.01	<1e-15
GEN Gen Digital Inc. Common Stock	+0.39	+0.26	-0.02	<1e-15
WTW Willis Towers Watson Public Limited Company Ordinary Shares	+0.40	+0.20	+0.01	<1e-15
EPAM EPAM SYSTEMS, INC.	+0.35	+0.27	+0.01	5e-12
LLY Eli Lilly & Co.	+0.34	+0.25	+0.03	1e-11

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

Symbol	beyond mkt	raw ρ	shared	isolation
XHE State Street SPDR S&P Health Care Equipment ETF	+0.36	+0.62	13
IHI iShares U.S. Medical Devices ETF	+0.40	+0.66	17