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Correlation
of % moves
-39%
In sync
of periods
31%
History
monthsmonths · through 2025-10
17
These move opposite each other about 31% of the time
Their swing sizes only faintly mirror each other (~15% 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.
Advanced
Statistics
In sync(i)
31.3%
Headline metric
Movement correlation(i)
-39%
Based on % moves
95% CI
-74% → +13%
Pipeline
Pipeline Summary
17 paired data points survived the monthly window.
Raw input
1,151
204
Normalized
1,151
204
Prepared
56
204
Aligned
17
17
Invalid removed
Likely range of correlation
R²(i)
15.3%
Variance explained
Significance
n.s.
Statistical confidence
Data points
17
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: -6 to 6 months.
Selected shift
No shift
Correlation at this shift
-39%
No shift — both series at their actual dates.
16 overlapping points at this shift
Baseline
-39%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
-39%
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
1 periods · Return correlation when both series rose
Both Falling
N/A
4 periods · Return correlation when both series fell
Diverging
-69%
11 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
226
A: 39 / B: 187
Series A
PTLO
Stock · 1,151 raw → 56 prepared
Series B
South Korea Home Prices
QKRN628BIS
FRED · 204 raw → 204 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
3
Estimated crossover points between normalized spreads.
Slope
-0.0199
Linear regression slope.
Intercept
-0.0056
Linear regression intercept.
Saved 2 weeks ago · ID: fred-qkrn628bis_stock-ptlo_monthly_5y