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Correlation
of values
+44%
In sync
of periods
50%
History
daysdays · through 2026-07-06
2,511
These move in the same direction about 50% of the time
Their swing sizes loosely line up (~20% of the pattern is shared).
Roughly random — these don't track each other in a meaningful way.
On a log scale so equal % moves take equal vertical space — best when one series has grown much faster than the other.
What to Watch
Holds in both up and down markets
The relationship is similar whether prices are rising or falling — reliable in both directions.
Advanced
Statistics
In sync(i)
50%
Headline metric
Movement correlation(i)
+44%
Based on values
95% CI
N/A
Likely range
Pipeline
Pipeline Summary
2,511 paired data points survived the daily window.
Raw input
2,512
15,162
Normalized
2,512
15,162
Prepared
2,512
15,162
Aligned
2,511
2,511
Invalid removed
20%
Variance explained
Significance
N/A
Statistical confidence
Data points(i)
2,511
Deep
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
+44%
No shift — both series at their actual dates.
2,511 overlapping points at this shift
Baseline
+44%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+44%
A non-zero peak suggests one series lines up better when shifted against the other.
Stability
How the correlation evolves over time. A stable line means the relationship is reliable; large swings signal regime-dependent behavior.
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
-32%
10 periods · Return correlation when both series rose
Both Falling
-25%
13 periods · Return correlation when both series fell
Diverging
-11%
13 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
12,652
A: 1 / B: 12651
Series A
S&P 500
SP500
FRED · 2,512 raw → 2,512 prepared
Series B
US Economic Policy Uncertainty
USEPUINDXD
FRED · 15,162 raw → 15,162 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
53
Estimated crossover points between normalized spreads.
Slope
0.0408
Linear regression slope.
Intercept
1.8493
Linear regression intercept.
Saved 3 months ago · ID: fred-sp500_fred-usepuindxd_daily_5y