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Correlation
of values
+60%
In sync
of periods
51%
History
weeksweeks · through 2026-23
157
These move in the same direction about 51% of the time
Their swing sizes loosely line up (~36% of the pattern is shared).
Roughly random — these don't track each other in a meaningful way.
Both lines start at the same point — easy to compare when growth rates are similar.
What to Watch
Slipping looser
The recent pattern is looser than its long-run baseline — keep an eye on whether this sticks.
Holds in both up and down markets
The relationship is similar whether prices are rising or falling — reliable in both directions.
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)
50.7%
Headline metric
Movement correlation(i)
+60%
Based on values
95% CI
+49% → +69%
Likely range of correlation
Pipeline
Pipeline Summary
157 paired data points survived the weekly window.
Raw input
2,880
784
Normalized
2,880
784
Prepared
2,880
157
Aligned
157
157
Invalid removed
R²(i)
36.2%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points
157
Usable
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: -12 to 12 weeks.
Selected shift
No shift
Correlation at this shift
+60%
No shift — both series at their actual dates.
157 overlapping points at this shift
Baseline
+60%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+60%
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
+22%
28 periods · Return correlation when both series rose
Both Falling
+6%
49 periods · Return correlation when both series fell
Diverging
-58%
79 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
2,723
A: 2723 / B: 0
Series A
30Y Mortgage Rate
MORTGAGE30US
FRED · 2,880 raw → 2,880 prepared
Series B
IG Bond Spread
BAMLC0A0CM
FRED · 784 raw → 157 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
11
Estimated crossover points between normalized spreads.
Slope
0.2740
Linear regression slope.
Intercept
-0.8885
Linear regression intercept.
Saved last month · ID: fred-bamlc0a0cm_fred-mortgage30us_weekly_5y