Correlation Analysis
Tesla, Inc. Common Stock vs Fiserv, Inc. Common Stock
TSLA vs FISV
-0.721
Strong inverse
When one moves up, the other tends to move down.
Tesla, Inc. Common Stock
↗TSLA
Tesla is a vertically integrated battery electric vehicle automaker and developer of real world artificial intelligence software, which includes autonomous driving and humanoid robots. The company has multiple vehicles in its fleet, which include luxury and midsize sedans, crossover SUVs, a light truck, and a semi truck. Tesla also plans to begin selling a sports car and offer a robotaxi service. Global deliveries in 2025 were nearly 1.64 million vehicles. The company sells batteries for stationary storage for residential and commercial properties including utilities and solar panels and solar roofs for energy generation. Tesla also owns a fast-charging network and an auto insurance business.
Market cap 1.3T
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
Rebased to 100
Who Moves First
TSLA leads FISV by 2 days
TSLA tends to move before FISV.
Best correlation after shifting: -0.721 (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
+0.243
7 periods · Return correlation when both series rose
Both Falling
-0.314
15 periods · Return correlation when both series fell
Diverging
-0.848
13 periods · Return correlation when series moved apart
R-Squared
51.9%
Share of variance in one series explained by the other.
Trend Agreement
60.1%
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: [-0.756, -0.681]
Scatter
XY Regression
Pipeline
Data quality details
Pipeline
Data quality details
Pipeline Summary
644 paired observations 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
Tesla, Inc. Common Stock
TSLA
Market cap 1.3T
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
13
Estimated crossover points between normalized spreads.
Slope
-0.1440
Linear regression slope.
Intercept
138.6294
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
TSLA
Tesla, Inc. Common Stock
Highest
+0.870
Reddit, Inc.
RDDT · 512 observations
Lowest
-0.817
Elevance Health, Inc.
ELV · 947 observations
FISV
Fiserv, Inc. Common Stock
Highest
-0.632
NetFlix Inc
NFLX · 644 observations
Lowest
-0.886
Johnson & Johnson
JNJ · 644 observations
Saved 3 hours ago · ID: stock-tsla-vs-stock-fisv-daily-20260408-8aqh7e