Correlation Analysis
Apple Inc. vs Old Dominion Freight Line
AAPL vs ODFL
+0.386
Light positive
When one moves up, the other tends to follow.
Apple Inc.
↗AAPL
Apple is among the largest companies in the world, with a broad portfolio of hardware and software products targeted at consumers and businesses. Apple's iPhone makes up a majority of the firm sales, and Apple's other products like Mac, iPad, and Watch are designed around the iPhone as the focal point of an expansive software ecosystem. Apple has progressively worked to add new applications, like streaming video, subscription bundles, and augmented reality. The firm designs its own software and semiconductors while working with subcontractors like Foxconn and TSMC to build its products and chips. Slightly less than half of Apple's sales come directly through its flagship stores, with a majority of sales coming indirectly through partnerships and distribution.
Market cap 3.8T
Old Dominion Freight Line
↗ODFL
Old Dominion Freight Line is the second-largest less-than-truckload carrier in the United States (following FedEx Freight), with roughly 260 service centers and 11,000-plus tractors. It is one of the most disciplined and efficient providers in the trucking industry, and its profitability and capital returns are well above those of its peers. Strategic initiatives focus on increasing network density through market-share gains and on maintaining industry-leading service (including ultralow cargo claims) through steadfast infrastructure investment.
Market cap 42.1B · 20,591 employees
Who Moves First
in sync
AAPL and ODFL tend to move at the same time.
Best correlation after shifting: +0.386 (13 shifts scanned)
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
+0.233
10 periods · Return correlation when both series rose
Both Falling
+0.637
5 periods · Return correlation when both series fell
Diverging
-0.630
20 periods · Return correlation when series moved apart
R-Squared
14.9%
Share of variance in one series explained by the other.
Trend Agreement
62.0%
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: [0.337, 0.432]
Time Series
Rebased to 100
Scatter
XY Regression
Pipeline
Data quality details
Pipeline
Data quality details
Pipeline Summary
1,254 paired observations 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
Apple Inc.
AAPL
Market cap 3.8T
Stock · 1,254 raw → 1,254 prepared
Series B
Old Dominion Freight Line
ODFL
Market cap 42.1B · 20,591 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
33
Estimated crossover points between normalized spreads.
Slope
0.2603
Linear regression slope.
Intercept
118.7533
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 3 hours ago · ID: stock-aapl-vs-stock-odfl-daily-20260408-rdyrz9