SeriesMagCorrOverlapThrough
These move together about 70% of the time
Very strong positive
Strong enough to use as a signal — read the stability and regime notes below before relying on it.
Founded in 1886, Atlanta-headquartered Coca-Cola is the world's largest nonalcoholic beverage company, with a strong portfolio of 200 brands covering key categories including carbonated soft drinks, water, sports, energy, juice, and coffee. Together with bottlers and distribution partners, the company sells finished beverage products bearing Coca-Cola and licensed brands through retailers and food-service locations in more than 200 countries and regions globally. Coca-Cola generates around 60% of its total revenue overseas, with sizable contributions from emerging economies in Latin America and Asia-Pacific.
Market cap 324.7B · 65,900 employees
Southern is one of the largest utilities in the US. The company serves 9 million customers with vertically integrated electric utilities in three states and natural gas distribution utilities in four states. It owns 46 gigawatts of rate-regulated generating capacity, primarily for serving customers in Georgia, Alabama, and Mississippi. Subsidiary Southern Power owns 13 gigawatts of natural gas generation and renewable energy across the US and sells the electricity primarily under long-term contracts.
What to Watch
Unusual right now
Recent correlation (+39%) is 3.9σ from the long-run average of +90% — pair is behaving differently than usual.
Holds across regimes
Correlation is similar when markets rise (+49%) and fall (+39%) — reliable in both directions.
Mostly stable
Correlation drifts a little but stays in the same neighbourhood.
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
+90%
No shift — both series at their actual dates.
1,255 overlapping points at this shift
Time series with The Southern Company 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
+90%
Pearson correlation
95% CI
+89% → +91%
Likely range
R²
80.9%
Variance explained
Trend agreement
69.9%
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 106.4B · 29,800 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
+49%
100 periods · Return correlation when both series rose
Both Falling
+39%
104 periods · Return correlation when both series fell
Diverging
-56%
45 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
Coca-Cola Company
KO
Market cap 324.7B · 65,900 employees
Stock · 1,255 raw → 1,255 prepared
Series B
The Southern Company
SO
Market cap 106.4B · 29,800 employees
Stock · 1,255 raw → 1,255 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
23
Estimated crossover points between normalized spreads.
Slope
1.6222
Linear regression slope.
Intercept
-26.0516
Linear regression intercept.
Saved 2 hours ago · ID: stock-ko_stock-so_5y