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Correlation
of % moves
+21%
In sync
of periods
58%
History
daysdays · through 2026-07-09
834
These move in the same direction about 58% of the time
Their swing sizes only faintly line up (~4% 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
Decouples in drawdowns
The relationship weakens when both prices are falling — don't count on this pair as a hedge under stress.
Advanced
Statistics
In sync(i)
58%
Headline metric
Movement correlation(i)
+21%
Based on % moves
95% CI
N/A
Likely range
Pipeline
Pipeline Summary
834 paired data points survived the daily window.
Raw input
834
1,254
Normalized
834
1,254
Prepared
834
1,254
Aligned
834
834
Invalid removed
4%
Variance explained
Significance
N/A
Statistical confidence
Data points(i)
832
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.
832 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
+40%
88 periods · Return correlation when both series rose
Both Falling
-1%
71 periods · Return correlation when both series fell
Diverging
-49%
63 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
420
A: 0 / B: 420
Series A
Cencora, Inc. (COR)
COR
Stock · 834 raw → 834 prepared
Series B
Aflac Inc. (AFL)
AFL
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
21
Estimated crossover points between normalized spreads.
Slope
0.1748
Linear regression slope.
Intercept
0.0005
Linear regression intercept.
Saved 3 months ago · ID: stock-afl_stock-cor_daily_5y