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Correlation
of % moves
+100%
In sync
of periods
99%
History
daysdays · through 2026-09-10
668
These move in the same direction about 99% of the time
When one swings, the other almost always swings by a closely matched amount (~100% 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 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.
Advanced
Statistics
In sync(i)
99%
Headline metric
Movement correlation(i)
+100%
Based on % moves
95% CI
+100% → +100%
Likely range of correlation
Pipeline
Pipeline Summary
668 paired data points survived the daily window.
Raw input
668
830
Normalized
668
830
Prepared
668
830
Aligned
668
668
Invalid removed
R²(i)
100%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points(i)
667
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
+100%
No shift — both series at their actual dates.
667 overlapping points at this shift
Baseline
+100%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+100%
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
+100%
118 periods · Return correlation when both series rose
Both Falling
+100%
125 periods · Return correlation when both series fell
Diverging
N/A
2 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
162
A: 0 / B: 162
Series A
ARKB
Stock · 668 raw → 668 prepared
Series B
IBIT
Stock · 830 raw → 830 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
18
Estimated crossover points between normalized spreads.
Slope
1.0048
Linear regression slope.
Intercept
-0.0000
Linear regression intercept.
Saved 3 weeks ago · ID: stock-arkb-vs-stock-ibit-daily