BRK.B BERKSHIRE HATHAWAY Class B

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

Same exposure: BRK.A move almost identically to BRK.B (|ρ| ≥ 0.93). Same-day relationships for the group are listed here.

BRK.B vs STEW

Both indexed to 100 at 2026-05-11.

BRK.B STEW · range 98–121 · 2026-05-11 → 2026-11-06

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

STEW SRH Total Return Fund, Inc.

ρ +0.64beyond mkt +0.46holdout +0.50stable 100%robust

ABEQ Absolute Select Value ETF

ρ +0.57beyond mkt +0.33holdout +0.48stable 100%robust

XLF State Street Financial Select Sector SPDR ETF

ρ +0.60beyond mkt +0.32holdout +0.45stable 100%robust

AFL Aflac Inc.

ρ +0.59beyond mkt +0.26holdout +0.46stable 100%robust

L Loews Corporation

ρ +0.60beyond mkt +0.26holdout +0.49stable 100%robust

KIE State Street SPDR S&P Insurance ETF

ρ +0.63beyond mkt +0.24holdout +0.50stable 100%robust

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

QVMT Invesco S&P 500 Concentrated QVM ETF

Δ -0.74recent -0.25prior +0.49beyond mkt +0.26

MBCE Monarch Blue Chips Elite Index ETF

Δ -0.60recent -0.35prior +0.25beyond mkt +0.08

LUNR Intuitive Machines, Inc. Class A Common Stock

Δ -0.59recent -0.53prior +0.07beyond mkt +0.00

ICAP Infrastructure Capital Equity Income ETF

Δ -0.59recent -0.26prior +0.32beyond mkt -0.03

VLUE iShares MSCI USA Value Factor ETF

Δ -0.57recent -0.31prior +0.27beyond mkt +0.02

CBSE Clough Select Equity ETF

Δ -0.56recent -0.48prior +0.08beyond mkt -0.06

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

Symbol	beyond mkt	raw ρ	shared	isolation
STEW SRH Total Return Fund, Inc.	+0.46	+0.64	7