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Portillo's Inc. Class A Common Stock (PTLO) vs Existing Home Sales
Correlation
of % moves
-47%
In sync
of periods
42%
History
monthsmonths · through 2026-08
13
These move in the same direction about 42% of the time
Their swing sizes loosely mirror each other (~22% 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.
Advanced
Statistics
In sync(i)
42%
Headline metric
Movement correlation(i)
-47%
Based on % moves
95% CI
-82% → +15%
Pipeline
Pipeline Summary
13 paired data points survived the monthly window.
Raw input
1,229
13
Normalized
1,229
13
Prepared
60
13
Aligned
13
13
Invalid removed
Likely range of correlation
R²(i)
22%
Variance explained
Significance
n.s.
Statistical confidence
Data points(i)
12
Limited
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: -2 to 2 months.
Selected shift
No shift
Correlation at this shift
-47%
No shift — both series at their actual dates.
12 overlapping points at this shift
Baseline
-47%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
-47%
A non-zero peak suggests one series lines up better when shifted against the other.
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
N/A
2 periods · Return correlation when both series rose
Both Falling
N/A
3 periods · Return correlation when both series fell
Diverging
-72%
7 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
47
A: 47 / B: 0
Series A
Portillo's Inc. Class A Common Stock (PTLO)
PTLO
Stock · 1,229 raw → 60 prepared
Series B
Existing Home Sales
EXHOSLUSM495S
FRED · 13 raw → 13 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
6
Estimated crossover points between normalized spreads.
Slope
-0.1045
Linear regression slope.
Intercept
-0.0052
Linear regression intercept.
Saved 4 months ago · ID: fred-exhoslusm495s_stock-ptlo_monthly_5y