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Correlation
of % moves
-58%
In sync
of periods
31%
History
daysdays · through 2026-09-04
1,251
These move in the same direction about 31% of the time
Their swing sizes loosely mirror each other (~34% 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
Holds in both up and down markets
The relationship is similar whether prices are rising or falling — reliable in both directions.
Advanced
Statistics
In sync(i)
31%
Headline metric
Movement correlation(i)
-58%
Based on % moves
95% CI
-62% → -54%
Likely range of correlation
Pipeline
Pipeline Summary
1,251 paired data points survived the daily window.
Raw input
1,254
9,268
Normalized
1,254
9,268
Prepared
1,254
9,268
Aligned
1,251
1,251
Invalid removed
R²(i)
34%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points(i)
1,250
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: -6 to 6 days.
Selected shift
No shift
Correlation at this shift
-58%
No shift — both series at their actual dates.
1,250 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
+46%
12 periods · Return correlation when both series rose
Both Falling
-29%
24 periods · Return correlation when both series fell
Diverging
-75%
105 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
8,020
A: 3 / B: 8017
Series A
American Express Company (AXP)
AXP
Stock · 1,254 raw → 1,254 prepared
Series B
VIX
VIXCLS
FRED · 9,268 raw → 9,268 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
15
Estimated crossover points between normalized spreads.
Slope
-2.3757
Linear regression slope.
Intercept
0.0011
Linear regression intercept.
Saved 4 months ago · ID: fred-vixcls_stock-axp_daily_5y