Correlation
of values
+99%
In sync
of periods
74%
History
daysdays · through 2026-01-01
317
These move in the same direction about 74% of the time
When one swings, the other almost always swings by a closely matched amount (~98% 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
Unusual right now
Recently looser than usual — the pair is behaving differently than its long-run pattern.
Decouples in drawdowns
The relationship weakens when both prices are falling — don't count on this pair as a hedge under stress.
Rock solid
The relationship barely changes from period to period — treat it as a reliable signal.
Explore
Advanced
Statistics
In sync(i)
74.2%
Headline metric
Movement correlation(i)
+99%
Based on values
95% CI
+99% → +99%
Likely range of correlation
Pipeline
Pipeline Summary
317 paired data points survived the daily window.
Raw input
1,359
317
Normalized
1,359
317
Prepared
1,359
317
Aligned
317
317
Invalid removed
R²(i)
98.5%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points
317
Robust
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
+99%
No shift — both series at their actual dates.
317 overlapping points at this shift
Baseline
+99%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+99%
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
+69%
171 periods · Return correlation when both series rose
Both Falling
-23%
8 periods · Return correlation when both series fell
Diverging
-27%
70 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
1,042
A: 1042 / B: 0
Series A
PPI: All Commodities
PPIACO
FRED · 1,359 raw → 1,359 prepared
Series B
Gross Domestic Product: Implicit Price Deflator
GDPDEF
FRED · 317 raw → 317 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
7
Estimated crossover points between normalized spreads.
Slope
0.4947
Linear regression slope.
Intercept
0.9493
Linear regression intercept.
Saved 4 days ago · ID: fred-gdpdef_fred-ppiaco_5y
Explore
Top 10 by absolute correlation
Ranked across both sides of this comparison using the same dense row format as the single-symbol correlations view.