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Correlation
of values
+70%
In sync
of periods
60%
History
monthsmonths · through 2026-04
808
These move in the same direction about 60% of the time
When one swings, the other often swings by a similar amount (~49% of the pattern is shared).
A real but noisy link — useful as context, risky as a standalone signal.
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)
59.9%
Headline metric
Movement correlation(i)
+70%
Based on values
95% CI
+66% → +73%
Pipeline
Pipeline Summary
808 paired data points survived the monthly window.
Raw input
808
1,360
Normalized
808
1,360
Prepared
808
1,360
Aligned
808
808
Invalid removed
Likely range of correlation
R²(i)
49.2%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points
808
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: -18 to 18 months.
Selected shift
No shift
Correlation at this shift
+70%
No shift — both series at their actual dates.
808 overlapping points at this shift
Baseline
+70%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+70%
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
+38%
12 periods · Return correlation when both series rose
Both Falling
N/A
2 periods · Return correlation when both series fell
Diverging
-81%
12 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
552
A: 0 / B: 552
Series A
M1 Money Supply
M1SL
FRED · 808 raw → 808 prepared
Series B
PPI: All Commodities
PPIACO
FRED · 1,360 raw → 1,360 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
1
Estimated crossover points between normalized spreads.
Slope
0.0092
Linear regression slope.
Intercept
97.4844
Linear regression intercept.
Saved last month · ID: fred-m1sl_fred-ppiaco_monthly_5y