SeriesMagCorrOverlapThrough
These move together about 65% 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 1890 as the first manufacturer of electric fans in North America, Emerson Electric has become a leading industrial automation player through the acquisition of established brands. Emerson organizes its business into seven segments that sell a wide range of automation software, power tools, and automation hardware such as valves, gauges, and switches. In recent years, Emerson divested its climate technology and consumer businesses to become more of a pure-play industrial automation company. The automation of a factory is an enticing long-term proposition for manufacturers, helping reduce accident rates and raise uptime and productivity.
Market cap 79.5B · 71,000 employees
Atlanta-based Delta Air Lines is one of the world's largest airlines, with a network of over 300 destinations in more than 50 countries. Delta operates a hub-and-spoke network, where it gathers and distributes passengers across the globe through its biggest hubs in Atlanta, New York, Salt Lake City, Detroit, Seattle, and Minneapolis-St. Paul. Delta has historically earned most of its international revenue and profits from flying passengers over the Atlantic Ocean.
What to Watch
Holds across regimes
Correlation is similar when markets rise (+44%) and fall (+51%) — 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
+91%
No shift — both series at their actual dates.
1,255 overlapping points at this shift
Time series with Delta Air Lines, 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
82.2%
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 44.8B · 103,000 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
+44%
109 periods · Return correlation when both series rose
Both Falling
+51%
102 periods · Return correlation when both series fell
Diverging
-47%
38 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
Emerson Electric Co.
EMR
Market cap 79.5B · 71,000 employees
Stock · 1,255 raw → 1,255 prepared
Series B
Delta Air Lines, Inc.
DAL
Market cap 44.8B · 103,000 employees
Stock · 1,255 raw → 1,255 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
67
Estimated crossover points between normalized spreads.
Slope
0.5298
Linear regression slope.
Intercept
-10.0948
Linear regression intercept.
Saved 1 hour ago · ID: stock-dal_stock-emr_5y
DAL
Delta Air Lines, Inc.
Strongest positive