Correlation
of % moves
+22%
In sync
of periods
68%
History
daysdays · through 2026-05-07
97
These move in the same direction about 68% of the time
Their swing sizes only faintly line up (~5% 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
Holds in both up and down markets
The relationship is similar whether prices are rising or falling — reliable in both directions.
Rock solid
The relationship barely changes from period to period — treat it as a reliable signal.
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Advanced
Statistics
Approximate (legacy record)In sync(i)
68.1%
Headline metric
Movement correlation(i)
+22%
Based on % moves
95% CI
N/A
Likely range
Pipeline
Pipeline Summary
97 paired data points survived the daily window.
Raw input
97
1,140
Normalized
97
1,140
Prepared
97
1,140
Aligned
97
97
Invalid removed
R²(i)
4.6%
Variance explained
Significance
N/A
Statistical confidence
Data points
97
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
+22%
No shift — both series at their actual dates.
96 overlapping points at this shift
Baseline
+22%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+22%
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
-25%
30 periods · Return correlation when both series rose
Both Falling
+12%
34 periods · Return correlation when both series fell
Diverging
-49%
32 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
1,043
A: 0 / B: 1043
Series A
MDLN
Stock · 97 raw → 97 prepared
Series B
PTLO
Stock · 1,140 raw → 1,140 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
16
Estimated crossover points between normalized spreads.
Slope
0.3293
Linear regression slope.
Intercept
-0.0009
Linear regression intercept.
Saved 4 days ago · ID: stock-mdln_stock-ptlo_5y
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Top 10 by absolute correlation
Ranked across both sides of this comparison using the same dense row format as the single-symbol correlations view.