Correlation Analysis
Alphabet Inc. Class C Capital Stock vs Cisco Systems, Inc. Common Stock (DE)
GOOG vs CSCO
+0.865
Very strong positive
When one moves up, the other tends to follow.
Alphabet Inc. Class C Capital Stock
↗GOOG
Alphabet is a holding company that wholly owns internet giant Google. The California-based company derives slightly less than 90% of its revenue from Google services, the vast majority of which is advertising sales. Alongside online ads, Google services houses sales stemming from Google's subscription services (YouTube TV and YouTube Music, among others), platforms (sales and in-app purchases on Play Store), and devices (Chromebooks, Pixel smartphones, and smart home products such as Chromecast). Google's cloud computing platform accounts for roughly 10% of Alphabet's revenue. The firm's investments in up-and-coming technologies such as self-driving cars (Waymo), health (Verily), and internet access (Google Fiber) make up the rest.
Market cap 3.6T · 190,820 employees
Cisco Systems, Inc. Common Stock (DE)
↗CSCO
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.
Market cap 317.7B
Time Series
Relative Performance
Who Moves First
in sync
GOOG and CSCO tend to move at the same time.
After testing 13 timing shifts, the strongest relationship was +0.865 (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
+0.592
15 periods · Return correlation when both series rose
Both Falling
+0.496
5 periods · Return correlation when both series fell
Diverging
-0.392
15 periods · Return correlation when series moved apart
R-Squared
74.8%
Share of variance in one series explained by the other.
Trend Agreement
65.8%
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: [0.850, 0.878]
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
Alphabet Inc. Class C Capital Stock
GOOG
Market cap 3.6T · 190,820 employees
Stock · 1,254 raw → 1,254 prepared
Series B
Cisco Systems, Inc. Common Stock (DE)
CSCO
Market cap 317.7B
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
17
Estimated crossover points between normalized spreads.
Slope
0.1432
Linear regression slope.
Intercept
32.8602
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
GOOG
Alphabet Inc. Class C Capital Stock
Highest
+0.948
Amphenol Corporation
APH · 1,254 data points
Lowest
-0.861
Fiserv, Inc. Common Stock
FISV · 644 data points
CSCO
Cisco Systems, Inc. Common Stock (DE)
Highest
+0.844
JPMorgan Chase & Co.
JPM · 1,254 data points
Lowest
+0.326
Exxon Mobil Corporation
XOM · 1,254 data points
Saved 5 hours ago · ID: stock-goog-vs-stock-csco-daily-20260408-ztglt8