Correlation
+86%
of values
In sync
58%
of periods
History
862
days · through 2026-04-01
These move in the same direction about 58% of the time
When one swings, the other almost always swings by a closely matched amount (~74% of the pattern is shared).
A faint pattern — interesting as colour, not strong enough to act on alone.
Time Series
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
Unusual right now
Recently looser than usual — the pair is behaving differently than its long-run pattern.
Holds in both up and down markets
The relationship is similar whether prices are rising or falling — reliable in both directions.
Mostly stable
The relationship drifts a little but stays in the same neighbourhood.
Advanced
Statistics
In sync(i)
57.6%
Headline metric
Movement correlation(i)
+86%
Based on values
95% CI
+84% → +88%
Likely range of correlation
Pipeline
Pipeline Summary
862 paired data points survived the daily window.
Raw input
862
1,288
Normalized
862
1,288
Prepared
862
1,288
Aligned
862
862
Invalid removed
Explore
R²(i)
73.8%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points
862
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
+86%
No shift — both series at their actual dates.
862 overlapping points at this shift
Baseline
+86%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+86%
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
+52%
89 periods · Return correlation when both series rose
Both Falling
+43%
68 periods · Return correlation when both series fell
Diverging
-31%
92 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
426
A: 0 / B: 426
Series A
Fed Funds Rate
FEDFUNDS
FRED · 862 raw → 862 prepared
Series B
Aaa Corporate Bond Yield
AAA
FRED · 1,288 raw → 1,288 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
47
Estimated crossover points between normalized spreads.
Slope
0.6571
Linear regression slope.
Intercept
3.5096
Linear regression intercept.
Saved 2 days ago · ID: fred-aaa_fred-fedfunds_5y
Explore
Top 5 by absolute correlation
Ranked across both sides of this comparison using the same dense row format as the single-symbol correlations view.