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Correlation
of values
-86%
In sync
of periods
31%
History
daysdays · through 2026-07-06
749
These move in the same direction about 31% of the time
When one swings, the other almost always swings by a closely matched amount in the opposite direction (~73% of the pattern is shared).
Strong enough to use as a signal — check the stability and regime notes below before relying on it.
Both lines start at the same point — easy to compare when growth rates are similar.
What to Watch
Unusual right now
Recently tighter 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.
Rock solid
The relationship barely changes from period to period — treat it as a reliable signal.
Advanced
Statistics
In sync(i)
31%
Headline metric
Movement correlation(i)
-86%
Based on values
95% CI
N/A
Likely range
Pipeline
Pipeline Summary
749 paired data points survived the daily window.
Raw input
784
13,971
Normalized
784
13,971
Prepared
784
13,971
Aligned
749
749
Invalid removed
73%
Variance explained
Significance
N/A
Statistical confidence
Data points(i)
749
Robust
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.
749 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
+33%
25 periods · Return correlation when both series rose
Both Falling
-17%
30 periods · Return correlation when both series fell
Diverging
-75%
181 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
13,257
A: 35 / B: 13222
Series A
IG Bond Spread
BAMLC0A0CM
FRED · 784 raw → 784 prepared
Series B
NASDAQ Composite
NASDAQCOM
FRED · 13,971 raw → 13,971 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
7
Estimated crossover points between normalized spreads.
Slope
-19715.2594
Linear regression slope.
Intercept
37191.9118
Linear regression intercept.
Saved 3 months ago · ID: fred-bamlc0a0cm_fred-nasdaqcom_daily_5y