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Correlation
of values
-81%
In sync
of periods
31%
History
monthsmonths · through 2026-05
34
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 (~66% 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
Slipping tighter
The recent pattern is tighter than its long-run baseline — keep an eye on whether this sticks.
ICE BofA BBB US Corporate Index Option-Adjusted Spread moves ~9 months before US Core CPI
Watch ICE BofA BBB US Corporate Index Option-Adjusted Spread for an early read on US Core CPI.
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)
31%
Headline metric
Movement correlation(i)
-81%
Based on values
95% CI
N/A
Pipeline
Pipeline Summary
34 paired data points survived the monthly window.
Raw input
832
785
Normalized
832
785
Prepared
832
37
Aligned
34
34
Invalid removed
Likely range
R²(i)
66%
Variance explained
Significance
N/A
Statistical confidence
Data points(i)
34
Thin
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: -17 to 17 months.
Selected shift
-9 months
Correlation at this shift
-93%
+12% stronger than no-shift baseline
ICE BofA BBB US Corporate Index Option-Adjusted Spread shifted 9 months later. Reads: "Does US Core CPI today line up with ICE BofA BBB US Corporate Index Option-Adjusted Spread 9 months ago?"
18 overlapping points at this shift
Baseline
-81%
No-shift correlation, matching the main time-series chart above.
Peak shift
-9 months
-93%
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
-15%
10 periods · Return correlation when both series rose
Both Falling
N/A
0 periods · Return correlation when both series fell
Diverging
+12%
22 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
801
A: 798 / B: 3
Series A
US Core CPI
CPILFESL
FRED · 832 raw → 832 prepared
Series B
ICE BofA BBB US Corporate Index Option-Adjusted Spread
BAMLC0A4CBBB
FRED · 785 raw → 37 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
1
Estimated crossover points between normalized spreads.
Slope
-0.0186
Linear regression slope.
Intercept
7.1858
Linear regression intercept.
Saved 3 months ago · ID: fred-bamlc0a4cbbb_fred-cpilfesl_monthly_5y