SeriesMagCorrOverlapThrough
These move together about 66% of the time
Very strong positive
Strong enough to use as a signal — read the stability and regime notes below before relying on it.
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 348.6B · 86,200 employees
Citigroup is a global financial powerhouse that orchestrates the movement of $5 trillion in daily transaction volume, serving as the essential connective tissue for the world's most complex multinational corporations. The firm remains a leader on the global stage, servicing 90% of the Fortune 500 through a proprietary network that includes direct membership to over 270 cash-clearing centers and a footprint that spans 94 countries. After a checkered history operating as an overly complex, disjointed firm, steps have been taken to streamline operations, resulting in organization across five segments: services, markets, banking, wealth, and US personal banking.
What to Watch
Holds across regimes
Correlation is similar when markets rise (+43%) and fall (+40%) — reliable in both directions.
Regime-dependent
The correlation has flipped sign across time windows — not reliable as a standalone signal.
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
+91%
No shift — both series at their actual dates.
1,255 overlapping points at this shift
Time series with Citigroup Inc. 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
+91%
Pearson correlation
95% CI
+90% → +92%
Likely range
R²
82.1%
Variance explained
Trend agreement
65.5%
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 220.3B · 226,000 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
+43%
101 periods · Return correlation when both series rose
Both Falling
+40%
91 periods · Return correlation when both series fell
Diverging
-46%
57 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
Cisco Systems, Inc. Common Stock (DE)
CSCO
Market cap 348.6B · 86,200 employees
Stock · 1,255 raw → 1,255 prepared
Series B
Citigroup Inc.
C
Market cap 220.3B · 226,000 employees
Stock · 1,255 raw → 1,255 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
42
Estimated crossover points between normalized spreads.
Slope
1.8958
Linear regression slope.
Intercept
-39.9223
Linear regression intercept.
Saved 3 hours ago · ID: stock-c_stock-csco_5y
C
Citigroup Inc.
Strongest positive