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Correlation
of % moves
+44%
In sync
of periods
68%
History
daysdays · through 2026-09-04
409
These move in the same direction about 68% of the time
Their swing sizes loosely line up (~20% of the pattern is shared).
Strong enough to use as a signal — check the stability and regime notes below before relying on it.
Both lines start at the same point — easy to compare when growth rates are similar.
What to Watch
Unusual right now
Recently tighter than usual — the pair is behaving differently than its long-run pattern.
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)
68%
Headline metric
Movement correlation(i)
+44%
Based on % moves
95% CI
+36% → +52%
Likely range of correlation
Pipeline
Pipeline Summary
409 paired data points survived the daily window.
Raw input
1,253
409
Normalized
1,253
409
Prepared
1,253
409
Aligned
409
409
Invalid removed
R²(i)
20%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points(i)
408
Robust
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
+44%
No shift — both series at their actual dates.
408 overlapping points at this shift
Baseline
+44%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+44%
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
+44%
98 periods · Return correlation when both series rose
Both Falling
+37%
90 periods · Return correlation when both series fell
Diverging
-46%
61 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
844
A: 844 / B: 0
Series A
Capital One Financial (COF)
COF
Stock · 1,253 raw → 1,253 prepared
Series B
Block, Inc. (XYZ)
XYZ
Stock · 409 raw → 409 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
19
Estimated crossover points between normalized spreads.
Slope
0.6500
Linear regression slope.
Intercept
-0.0004
Linear regression intercept.
Saved 4 months ago · ID: stock-cof_stock-xyz_daily_5y