Correlation Analysis
BERKSHIRE HATHAWAY Class B vs Darden Restaurants, Inc.
BRK.B vs DRI
+0.840
Strong positive
When one moves up, the other tends to follow.
BERKSHIRE HATHAWAY Class B
↗BRK.B
Berkshire Hathaway is a holding company with a wide array of subsidiaries engaged in diverse activities. The firm's core business segment is insurance, run primarily through Geico, Berkshire Hathaway Reinsurance Group, and Berkshire Hathaway Primary Group. Berkshire has used the excess cash thrown off from its operations to acquire Burlington Northern Santa Fe (railroad), Berkshire Hathaway Energy (utilities and energy distributors), and the companies that make up its manufacturing, service, and retailing operations (which include Precision Castparts, Lubrizol, Clayton Homes, Marmon, and IMC/ISCAR). The conglomerate is unique in that it is run on a completely decentralized basis. Berkshire is expected to generate close to $375 billion in revenue in 2025.
Market cap 1T
Darden Restaurants, Inc.
↗DRI
Darden Restaurants is the largest global full-service dining operator, with over $12 billion in system sales across 2,159 company-owned stores at the end of fiscal 2025, spanning the US and Canada. The firm operates 10 banners in four segments, including Olive Garden (43% of sales), LongHorn Steakhouse (25%), and fine dining (21%), which includes The Capital Grille, Ruth's Chris, and Eddie V's. The other 11% of sales comes from smaller concepts such as Yard House and Cheddar's. Darden primarily generates revenue through sales of food and beverage items at its company-owned restaurants. It also earns royalties on sales from 154 franchised locations in US and international markets, which sit within the other segment but are immaterial to consolidated results.
Market cap 22.5B · 197,924 employees
Time Series
Relative Performance
Who Moves First
in sync
BRK.B and DRI tend to move at the same time.
After testing 13 timing shifts, the strongest relationship was +0.840 (they moved in the same direction).
Do They Crash Together?
Correlation by Market Regime
How these series behave when markets are rising, falling, or diverging. A correlation that holds in drawdowns is very different from one that only works in rallies.
Both Rising
-0.562
12 periods · Return correlation when both series rose
Both Falling
-0.742
7 periods · Return correlation when both series fell
Diverging
-0.728
16 periods · Return correlation when series moved apart
R-Squared
70.6%
Share of variance in one series explained by the other.
Trend Agreement
65.7%
How often both series moved in the same direction period-to-period.
Overlap Quality
1,254
Deep shared window — 1,254 usable pairs.
Significance
p < 0.001
95% CI: [0.823, 0.856]
Scatter
XY Regression
Pipeline
Data quality details
Pipeline
Data quality details
Pipeline Summary
1,254 paired data points survived the daily window.
Raw input
1,254
1,254
Normalized
1,254
1,254
Prepared
1,254
1,254
Aligned
1,254
1,254
Invalid removed
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
0
A: 0 / B: 0
Series A
BERKSHIRE HATHAWAY Class B
BRK.B
Market cap 1T
Stock · 1,254 raw → 1,254 prepared
Series B
Darden Restaurants, Inc.
DRI
Market cap 22.5B · 197,924 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
11
Estimated crossover points between normalized spreads.
Slope
0.2595
Linear regression slope.
Intercept
62.0294
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 7 hours ago · ID: stock-brk-b-vs-stock-dri-daily