AJG Arthur J. Gallagher & Co.

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

AJG vs BRO

Both indexed to 100 at 2026-05-11.

AJG BRO · range 97–146 · 2026-05-11 → 2026-11-06

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

BRO Brown & Brown, Inc.

ρ +0.77beyond mkt +0.57holdout +0.83stable 100%robust

MRSH Marsh

ρ +0.75beyond mkt +0.53holdout +0.81stable 100%robust

AON Aon plc Class A

ρ +0.74beyond mkt +0.51holdout +0.82stable 100%robust

WTW Willis Towers Watson Public Limited Company Ordinary Shares

ρ +0.70beyond mkt +0.47holdout +0.78stable 100%robust

RYAN Ryan Specialty Holdings, Inc.

ρ +0.65beyond mkt +0.42holdout +0.71stable 100%robust

KIE State Street SPDR S&P Insurance ETF

ρ +0.65beyond mkt +0.35holdout +0.67stable 100%robust

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

NSP Insperity, Inc

horizon 10dρ +0.36holdout +0.44stable 75%robust

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

PRLB PROTO LABS, INC.

Δ -0.64recent -0.62prior +0.03beyond mkt -0.03

MBCE Monarch Blue Chips Elite Index ETF

Δ -0.59recent -0.55prior +0.05beyond mkt +0.04

IRDM Iridium Communications Inc Common Stock

Δ -0.59recent -0.57prior +0.02beyond mkt -0.02

ARBE Arbe Robotics Ltd. Ordinary Shares

Δ -0.58recent -0.58prior +0.00beyond mkt +0.04

PLPC Preformed Line Products Company Common Stock

Δ -0.58recent -0.64prior -0.05beyond mkt +0.07

RKLB Rocket Lab Corporation Common Stock

Δ -0.57recent -0.54prior +0.03beyond mkt +0.05

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

Symbol	beyond mkt	raw ρ	shared
WTW Willis Towers Watson Public Limited Company Ordinary Shares	+0.47	+0.70	16
MRSH Marsh	+0.53	+0.75	18
BRO Brown & Brown, Inc.	+0.57	+0.77	19
AON Aon plc Class A	+0.51	+0.74	19
RYAN Ryan Specialty Holdings, Inc.	+0.42	+0.65	18