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Correlation
of % moves
+23%
In sync
of periods
65%
History
daysdays · through 2025-04-01
864
These move in the same direction about 65% 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.
On a log scale so equal % moves take equal vertical space — best when one series has grown much faster than the other.
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.
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Advanced
Statistics
In sync(i)
65%
Headline metric
Movement correlation(i)
+23%
Based on % moves
95% CI
+17% → +29%
Likely range of correlation
Pipeline
Pipeline Summary
864 paired data points survived the daily window.
Raw input
1,235
882
Normalized
1,235
882
Prepared
1,235
882
Aligned
864
864
Invalid removed
R²(i)
5%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points(i)
863
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
+23%
No shift — both series at their actual dates.
863 overlapping points at this shift
Baseline
+23%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+23%
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
+74%
80 periods · Return correlation when both series rose
Both Falling
+39%
90 periods · Return correlation when both series fell
Diverging
-38%
52 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
389
A: 371 / B: 18
Series A
Portillo's Inc. Class A Common Stock (PTLO)
PTLO
Stock · 1,235 raw → 1,235 prepared
Series B
DM
Stock · 882 raw → 882 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
19
Estimated crossover points between normalized spreads.
Slope
0.4451
Linear regression slope.
Intercept
-0.0027
Linear regression intercept.
Saved 5 months ago · ID: stock-dm_stock-ptlo_daily_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.