Correlation Analysis
Apple Inc. vs Fiserv, Inc. Common Stock
AAPL vs FISV
-0.847
Strong inverse
When one moves up, the other tends to move down.
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
Fiserv, Inc. Common Stock
↗FISV
Fiserv is a leading provider of core processing and complementary services, such as electronic funds transfer, payment processing, and loan processing, for US banks and credit unions, with a focus on small and midsize banks. Following its 2019 merger with First Data, Fiserv also provides payment processing services to merchants. About 10% of the company's revenue is generated internationally.
Market cap 30B · 38,000 employees
Time Series
Relative Performance
Who Moves First
in sync
AAPL and FISV tend to move at the same time.
After testing 13 timing shifts, the strongest relationship was -0.847 (they moved in opposite directions).
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
-0.034
9 periods · Return correlation when both series rose
Both Falling
-0.030
12 periods · Return correlation when both series fell
Diverging
-0.963
14 periods · Return correlation when series moved apart
R-Squared
71.7%
Share of variance in one series explained by the other.
Trend Agreement
64.0%
How often both series moved in the same direction period-to-period.
Overlap Quality
644
Robust shared window — 644 usable pairs.
Significance
p < 0.001
95% CI: [-0.867, -0.823]
Scatter
XY Regression
Pipeline
Data quality details
Pipeline
Data quality details
Pipeline Summary
644 paired data points survived the daily window.
Raw input
1,254
644
Normalized
1,254
644
Prepared
1,254
644
Aligned
644
644
Invalid removed
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
610
A: 610 / B: 0
Series A
Apple Inc.
AAPL
Market cap 3.8T
Stock · 1,254 raw → 1,254 prepared
Series B
Fiserv, Inc. Common Stock
FISV
Market cap 30B · 38,000 employees
Stock · 644 raw → 644 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
15
Estimated crossover points between normalized spreads.
Slope
-0.3409
Linear regression slope.
Intercept
157.0852
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 5 hours ago · ID: stock-aapl-vs-stock-fisv-daily-20260408-q8swun