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Correlation
of % moves
-21%
In sync
of periods
41%
History
daysdays · through 2026-05-15
133
These move opposite each other about 41% of the time
Their swing sizes only faintly mirror each other (~5% 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.
What to Watch
Slipping looser
The recent pattern is looser than its long-run baseline — keep an eye on whether this sticks.
Holds in both up and down markets
The relationship is similar whether prices are rising or falling — reliable in both directions.
Rock solid
The relationship barely changes from period to period — treat it as a reliable signal.
Advanced
Statistics
In sync(i)
41.4%
Headline metric
Movement correlation(i)
-21%
Based on % moves
95% CI
-37% → -4%
Likely range of correlation
Pipeline
Pipeline Summary
133 paired data points survived the daily window.
Raw input
139
11,325
Normalized
139
11,325
Prepared
139
11,325
Aligned
133
133
Invalid removed
R²(i)
4.5%
Variance explained
Significance
p < 0.05
Statistical confidence
Data points
133
Usable
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
-21%
No shift — both series at their actual dates.
132 overlapping points at this shift
Baseline
-21%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
-21%
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
+1%
25 periods · Return correlation when both series rose
Both Falling
-16%
28 periods · Return correlation when both series fell
Diverging
-63%
79 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
11,198
A: 6 / B: 11192
Series A
Q
Stock · 139 raw → 139 prepared
Series B
USD/CNY Exchange Rate
DEXCHUS
FRED · 11,325 raw → 11,325 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
5
Estimated crossover points between normalized spreads.
Slope
-0.0087
Linear regression slope.
Intercept
-0.0003
Linear regression intercept.
Saved 2 weeks ago · ID: fred-dexchus_stock-q_daily_5y