SeriesMagCorrOverlapThrough
These move together about 72% of the time
Very strong positive
Strong enough to use as a signal — read the stability and regime notes below before relying on it.
Caterpillar is the world's leading manufacturer of construction and mining equipment, off-highway diesel and natural gas engines, industrial gas turbines, and diesel-electric locomotives. Its reporting segments are construction, resource, energy, and transportation. Market share approaches 20% across many products. Caterpillar operates a captive finance subsidiary to facilitate sales. The firm has a global reach that is approximately evenly balanced between the US and the rest of the world. Construction skews more domestic, while the other divisions are more geographically diversified. An independent network of over 150 dealers operates approximately 2,800 facilities, giving Caterpillar reac
Market cap 385.6B · 118,000 employees
iShares Core S&P 500 ETF
IVV
What to Watch
Holds across regimes
Correlation is similar when markets rise (+31%) and fall (+50%) — 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
+90%
No shift — both series at their actual dates.
1,255 overlapping points at this shift
Time series with iShares Core S&P 500 ETF 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
+88% → +91%
Likely range
R²
80.3%
Variance explained
Trend agreement
72.3%
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.
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
+31%
114 periods · Return correlation when both series rose
Both Falling
+50%
94 periods · Return correlation when both series fell
Diverging
-54%
41 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
Caterpillar Inc.
CAT
Market cap 385.6B · 118,000 employees
Stock · 1,255 raw → 1,255 prepared
Series B
iShares Core S&P 500 ETF
IVV
Stock · 1,255 raw → 1,255 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
32
Estimated crossover points between normalized spreads.
Slope
0.6195
Linear regression slope.
Intercept
307.6982
Linear regression intercept.
Saved 2 hours ago · ID: stock-cat_stock-ivv_5y
IVV
iShares Core S&P 500 ETF
Strongest positive