Correlation
+59%
of values
In sync
57%
of periods
History
786
days · through 2026-04-30
These move in the same direction about 57% of the time
Their swing sizes loosely line up (~35% of the pattern is shared).
A faint pattern — interesting as colour, not strong enough to act on alone.
Time Series
Both lines start at the same point — easy to compare when growth rates are similar.
What to Watch
Unusual right now
Recently looser than usual — the pair is behaving differently than its long-run pattern.
Flips between sync and inverse
Sometimes the two move together, sometimes opposite. Don't treat this as a stable signal.
Advanced
Statistics
In sync(i)
57.1%
Headline metric
Movement correlation(i)
+59%
Based on values
95% CI
+55% → +64%
Pipeline
Pipeline Summary
786 paired data points survived the daily window.
Raw input
786
1,741
Normalized
786
1,741
Prepared
786
1,741
Aligned
786
786
Invalid removed
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.
Likely range of correlation
R²(i)
35.2%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points
786
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
+59%
No shift — both series at their actual dates.
786 overlapping points at this shift
Baseline
+59%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+59%
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
N/A
1 periods · Return correlation when both series rose
Both Falling
N/A
3 periods · Return correlation when both series fell
Diverging
-7%
245 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
955
A: 0 / B: 955
Series A
ICE BofA BBB US Corporate Index Option-Adjusted Spread
BAMLC0A4CBBB
FRED · 786 raw → 786 prepared
Series B
Interest on Reserve Balances
IORB
FRED · 1,741 raw → 1,741 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
2
Estimated crossover points between normalized spreads.
Slope
1.6795
Linear regression slope.
Intercept
2.7305
Linear regression intercept.
Saved yesterday · ID: fred-bamlc0a4cbbb_fred-iorb_5y