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Correlation
of % moves
+26%
In sync
of periods
61%
History
daysdays · through 2026-09-10
183
These move in the same direction about 61% of the time
Their swing sizes only faintly line up (~7% 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
Slipping tighter
The recent pattern is tighter than its long-run baseline — keep an eye on whether this sticks.
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)
61%
Headline metric
Movement correlation(i)
+26%
Based on % moves
95% CI
+12% → +39%
Likely range of correlation
Pipeline
Pipeline Summary
183 paired data points survived the daily window.
Raw input
183
1,254
Normalized
183
1,254
Prepared
183
1,254
Aligned
183
183
Invalid removed
R²(i)
7%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points(i)
182
Usable
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
+26%
No shift — both series at their actual dates.
182 overlapping points at this shift
Baseline
+26%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+26%
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%
55 periods · Return correlation when both series rose
Both Falling
+3%
56 periods · Return correlation when both series fell
Diverging
-54%
71 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
1,071
A: 0 / B: 1071
Series A
Medline Inc. Class A common stock (MDLN)
MDLN
Stock · 183 raw → 183 prepared
Series B
Global Payments, Inc. (GPN)
GPN
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
6
Estimated crossover points between normalized spreads.
Slope
0.2386
Linear regression slope.
Intercept
0.0007
Linear regression intercept.
Saved 4 months ago · ID: stock-gpn_stock-mdln_daily_5y