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American Electric Power Co. Inc. (AEP) vs Baa Corporate Bond Yield
Correlation
of % moves
-21%
In sync
of periods
40%
History
daysdays · through 2026-05-08
1,246
These move opposite each other about 40% of the time
Their swing sizes only faintly mirror each other (~4% of the pattern is shared).
A real but noisy link — useful as context, risky as a standalone signal.
Both lines start at the same point — easy to compare when growth rates are similar.
What to Watch
Holds in both up and down markets
The relationship is similar whether prices are rising or falling — reliable in both directions.
Mostly stable
The relationship drifts a little but stays in the same neighbourhood.
Advanced
Statistics
In sync(i)
40.3%
Headline metric
Movement correlation(i)
-21%
Based on % moves
95% CI
-26% → -15%
Likely range of correlation
Pipeline
Pipeline Summary
1,246 paired data points survived the daily window.
Raw input
1,255
10,124
Normalized
1,255
10,124
Prepared
1,255
10,124
Aligned
1,246
1,246
Invalid removed
R²(i)
4.2%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points
1,246
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
-21%
No shift — both series at their actual dates.
1,245 overlapping points at this shift
Baseline
-21%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
-21%
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
-11%
49 periods · Return correlation when both series rose
Both Falling
+11%
43 periods · Return correlation when both series fell
Diverging
-75%
157 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
8,887
A: 9 / B: 8878
Series A
AEP
Stock · 1,255 raw → 1,255 prepared
Series B
Baa Corporate Bond Yield
DBAA
FRED · 10,124 raw → 10,124 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
23
Estimated crossover points between normalized spreads.
Slope
-0.1711
Linear regression slope.
Intercept
0.0004
Linear regression intercept.
Saved 2 days ago · ID: fred-dbaa_stock-aep_daily_5y