SeriesMagCorrSyncOverlapThrough
Correlation
+38%
of % moves
In sync
36%
of periods
History
60
months · through 2026-04
These move in the same direction about 36% of the time
Their swing sizes only faintly line up (~14% of the pattern is shared).
Roughly random — these don't track each other in a meaningful way.
Time Series
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.
Aaa Corporate Bond Yield moves ~18 months before AEP
Watch Aaa Corporate Bond Yield for an early read on AEP.
Tighter in drawdowns
The relationship is stronger when both prices are falling than when both are rising — typical risk-off behaviour.
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)
35.6%
Headline metric
Movement correlation(i)
+38%
Based on % moves
95% CI
+14% → +58%
Likely range of correlation
Pipeline
Pipeline Summary
60 paired data points survived the monthly window.
Raw input
1,255
1,288
Normalized
1,255
1,288
Prepared
61
1,288
Aligned
60
60
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.
R²(i)
14.5%
Variance explained
Significance
p < 0.01
Statistical confidence
Data points
60
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
-18 months
Correlation at this shift
+55%
+17% stronger than no-shift baseline
Aaa Corporate Bond Yield shifted 18 months later. Reads: "Does American Electric Power Co. Inc. (AEP) today line up with Aaa Corporate Bond Yield 18 months ago?"
42 overlapping points at this shift
Baseline
+38%
No-shift correlation, matching the main time-series chart above.
Peak shift
-18 months
+55%
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
+8%
12 periods · Return correlation when both series rose
Both Falling
-28%
9 periods · Return correlation when both series fell
Diverging
-72%
38 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
1,229
A: 1 / B: 1228
Series A
AEP
Stock · 1,255 raw → 61 prepared
Series B
Aaa Corporate Bond Yield
AAA
FRED · 1,288 raw → 1,288 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
9
Estimated crossover points between normalized spreads.
Slope
0.0267
Linear regression slope.
Intercept
2.0210
Linear regression intercept.
Saved yesterday · ID: fred-aaa_stock-aep_5y