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Correlation
of values
-77%
In sync
of periods
64%
History
monthsmonths · through 2026-03
34
These move in the same direction about 64% of the time
When one swings, the other often swings by a similar amount in the opposite direction (~60% of the pattern is shared).
A faint pattern — interesting as colour, not strong enough to act on alone.
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.
ICE BofA BBB US Corporate Index Option-Adjusted Spread moves ~4 months before Case-Shiller Home Price Index
Watch ICE BofA BBB US Corporate Index Option-Adjusted Spread for an early read on Case-Shiller Home Price Index.
Decouples in drawdowns
The relationship weakens when both prices are falling — don't count on this pair as a hedge under stress.
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)
63.6%
Headline metric
Movement correlation(i)
-77%
Based on values
95% CI
-88% → -59%
Likely range of correlation
Pipeline
Pipeline Summary
34 paired data points survived the monthly window.
Raw input
785
471
Normalized
785
471
Prepared
37
471
Aligned
34
34
Invalid removed
R²(i)
59.8%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points
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: -18 to 18 months.
Selected shift
+4 months
Correlation at this shift
-87%
+9% stronger than no-shift baseline
Case-Shiller Home Price Index shifted 4 months earlier. Reads: "Does ICE BofA BBB US Corporate Index Option-Adjusted Spread today line up with Case-Shiller Home Price Index 4 months from now?"
30 overlapping points at this shift
Baseline
-77%
No-shift correlation, matching the main time-series chart above.
Peak shift
+4 months
-87%
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
+62%
9 periods · Return correlation when both series rose
Both Falling
+20%
12 periods · Return correlation when both series fell
Diverging
-39%
12 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
440
A: 3 / B: 437
Series A
ICE BofA BBB US Corporate Index Option-Adjusted Spread
BAMLC0A4CBBB
FRED · 785 raw → 37 prepared
Series B
Case-Shiller Home Price Index
CSUSHPINSA
FRED · 471 raw → 471 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
1
Estimated crossover points between normalized spreads.
Slope
-28.2151
Linear regression slope.
Intercept
355.9309
Linear regression intercept.
Saved last month · ID: fred-bamlc0a4cbbb_fred-csushpinsa_monthly_5y