SeriesMagCorrOverlapThrough
These move together about 59% of the time
Strong positive
Strong enough to use as a signal — read the stability and regime notes below before relying on it.
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 1.4T · 134,785 employees
Cisco Systems is the largest provider of networking equipment in the world and one of the largest software companies in the world. Its largest businesses are selling networking hardware and software (where it has leading market shares) and cybersecurity software such as firewalls. It also has collaboration products, like its Webex suite, and observability tools. It primarily outsources its manufacturing to third parties and has a large sales and marketing staff—25,000 strong across 90 countries. Overall, Cisco employs 80,000 people and sells its products globally.
What to Watch
Holds across regimes
Correlation is similar when markets rise (+26%) and fall (+36%) — reliable in both directions.
Flaky
Correlation swings widely across time windows — careful using this as a point estimate.
Time Series
Time-Shifted Correlation
See how correlation changes when one series is offset in time. A taller bar at a non-zero shift means the two move together better when one leads the other — that's a potential lead/lag signal.
Correlation by shift
Click a bar to inspect. Range: -6 to 6 days.
Selected shift
No shift
Correlation at this shift
+77%
No shift — both series at their actual dates.
1,255 overlapping points at this shift
Time series with Cisco Systems, Inc. Common Stock (DE) at original dates
Indexed to 100 at start
Deep Dive
Stability
How the correlation evolves over time. A stable line means the relationship is reliable; large swings signal regime-dependent behavior.
Corr
+77%
Pearson correlation
95% CI
+75% → +80%
Likely range
R²
59.9%
Variance explained
Trend agreement
58.9%
Same-direction moves
Significance
p < 0.001
Statistical confidence
Data points
1,255
Deep
Pipeline
Pipeline Summary
1,255 paired data points survived the daily window.
Raw input
1,255
1,255
Normalized
1,255
1,255
Prepared
1,255
1,255
Aligned
1,255
1,255
Invalid removed
Explore
The strongest positive and inverse pairs we’ve saved for each side of this comparison — good jumping-off points if this result raised a question.
Market cap 348.6B · 86,200 employees
Do They Crash Together?
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
+26%
87 periods · Return correlation when both series rose
Both Falling
+36%
66 periods · Return correlation when both series fell
Diverging
-57%
96 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
0
A: 0 / B: 0
Series A
Tesla, Inc. Common Stock
TSLA
Market cap 1.4T · 134,785 employees
Stock · 1,255 raw → 1,255 prepared
Series B
Cisco Systems, Inc. Common Stock (DE)
CSCO
Market cap 348.6B · 86,200 employees
Stock · 1,255 raw → 1,255 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
29
Estimated crossover points between normalized spreads.
Slope
0.0938
Linear regression slope.
Intercept
30.2130
Linear regression intercept.
Saved 3 hours ago · ID: stock-csco_stock-tsla_5y
CSCO
Cisco Systems, Inc. Common Stock (DE)
Strongest positive