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Correlation
of % moves
+96%
In sync
of periods
98%
History
daysdays · through 2026-09-08
666
These move in the same direction about 98% of the time
When one swings, the other almost always swings by a closely matched amount (~92% 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)
98%
Headline metric
Movement correlation(i)
+96%
Based on % moves
95% CI
+95% → +97%
Likely range of correlation
Pipeline
Pipeline Summary
666 paired data points survived the daily window.
Raw input
666
1,226
Normalized
666
1,226
Prepared
666
1,226
Aligned
666
666
Invalid removed
R²(i)
92%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points(i)
665
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
+96%
No shift — both series at their actual dates.
665 overlapping points at this shift
Baseline
+96%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+96%
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
+78%
119 periods · Return correlation when both series rose
Both Falling
+75%
124 periods · Return correlation when both series fell
Diverging
-27%
5 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
560
A: 0 / B: 560
Series A
ARKB
Stock · 666 raw → 666 prepared
Series B
BITO
Stock · 1,226 raw → 1,226 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
9
Estimated crossover points between normalized spreads.
Slope
1.0218
Linear regression slope.
Intercept
-0.0019
Linear regression intercept.
Saved 3 weeks ago · ID: stock-arkb-vs-stock-bito-daily