SeriesMagCorrSyncOverlapThrough
Correlation
+42%
of % moves
In sync
29%
of periods
History
1,196
days · through 2026-05-04
These move in the same direction about 29% of the time
Their swing sizes loosely line up (~18% of the pattern is shared).
Roughly random — these don't track each other in a meaningful way.
Time Series
On a log scale so equal % moves take equal vertical space — best when one series has grown much faster than the other.
What to Watch
Unusual right now
Recently looser than usual — the pair is behaving differently than its long-run pattern.
Rock solid
The relationship barely changes from period to period — treat it as a reliable signal.
Advanced
Statistics
In sync(i)
29.4%
Headline metric
Movement correlation(i)
+42%
Based on % moves
95% CI
+37% → +47%
Pipeline
Pipeline Summary
1,196 paired data points survived the daily window.
Raw input
1,255
1,741
Normalized
1,255
1,741
Prepared
1,255
1,741
Aligned
1,196
1,196
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)
17.7%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points
1,196
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
+42%
No shift — both series at their actual dates.
1,196 overlapping points at this shift
Baseline
+42%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+42%
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
3 periods · Return correlation when both series rose
Both Falling
N/A
2 periods · Return correlation when both series fell
Diverging
-12%
244 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
604
A: 59 / B: 545
Series A
HEI
Stock · 1,255 raw → 1,255 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
5
Estimated crossover points between normalized spreads.
Slope
0.0118
Linear regression slope.
Intercept
1.2365
Linear regression intercept.
Saved yesterday · ID: fred-iorb_stock-hei_5y