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Correlation
of values
-58%
In sync
of periods
52%
History
monthsmonths · through 2026-03
543
These move opposite each other about 52% of the time
Their swing sizes loosely mirror each other (~34% of the pattern is shared).
Roughly random — these don't track each other in a meaningful way.
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
Unusual right now
Recently tighter than usual — the pair is behaving differently than its long-run pattern.
Holds in both up and down markets
The relationship is similar whether prices are rising or falling — reliable in both directions.
Flips between sync and inverse
Sometimes the two move together, sometimes opposite. Don't treat this as a stable signal.
Advanced
Statistics
In sync(i)
52.2%
Headline metric
Movement correlation(i)
-58%
Based on values
95% CI
-63% → -52%
Likely range of correlation
Pipeline
Pipeline Summary
543 paired data points survived the monthly window.
Raw input
807
11,325
Normalized
807
11,325
Prepared
807
545
Aligned
543
543
Invalid removed
R²(i)
33.7%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points
543
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: -18 to 18 months.
Selected shift
No shift
Correlation at this shift
-58%
No shift — both series at their actual dates.
543 overlapping points at this shift
Baseline
-58%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
-58%
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
-5%
53 periods · Return correlation when both series rose
Both Falling
+7%
63 periods · Return correlation when both series fell
Diverging
-16%
133 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
266
A: 264 / B: 2
Series A
Personal Savings Rate
PSAVERT
FRED · 807 raw → 807 prepared
Series B
USD/CNY Exchange Rate
DEXCHUS
FRED · 11,325 raw → 545 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
15
Estimated crossover points between normalized spreads.
Slope
-0.3792
Linear regression slope.
Intercept
8.8713
Linear regression intercept.
Saved 2 weeks ago · ID: fred-dexchus_fred-psavert_monthly_5y