Correlation
of % moves
-39%
In sync
of periods
36%
History
daysdays · through 2026-04-30
512
These move opposite each other about 36% of the time
Their swing sizes only faintly mirror each other (~15% of the pattern is shared).
A real but noisy link — useful as context, risky as a standalone signal.
Both lines start at the same point — easy to compare when growth rates are similar.
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.
Rock solid
The relationship barely changes from period to period — treat it as a reliable signal.
Explore
Advanced
Statistics
Approximate (legacy record)In sync(i)
36.4%
Headline metric
Movement correlation(i)
-39%
Based on % moves
95% CI
N/A
Likely range
Pipeline
Pipeline Summary
512 paired data points survived the daily window.
Raw input
730
9,176
Normalized
730
9,176
Prepared
730
9,176
Aligned
512
512
Invalid removed
R²(i)
14.8%
Variance explained
Significance
N/A
Statistical confidence
Data points
512
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
-39%
No shift — both series at their actual dates.
249 overlapping points at this shift
Baseline
-39%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
-39%
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
-16%
48 periods · Return correlation when both series rose
Both Falling
-18%
61 periods · Return correlation when both series fell
Diverging
-46%
140 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
8,882
A: 218 / B: 8664
Series A
Ethereum Classic (ETC)
ETC
Crypto · 730 raw → 730 prepared
Series B
VIX
VIXCLS
FRED · 9,176 raw → 9,176 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
23
Estimated crossover points between normalized spreads.
Slope
-0.6105
Linear regression slope.
Intercept
-0.0019
Linear regression intercept.
Saved 6 days ago · ID: crypto-etc_fred-vixcls_5y
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Top 10 by absolute correlation
Ranked across both sides of this comparison using the same dense row format as the single-symbol correlations view.