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Correlation
of % moves
+23%
In sync
of periods
55%
History
daysdays · through 2026-09-25
541
These move in the same direction about 55% of the time
Their swing sizes only faintly line up (~6% of the pattern is shared).
Roughly random — these don't track each other in a meaningful way.
Both lines start at the same point — easy to compare when growth rates are similar.
What to Watch
Slipping tighter
The recent pattern is tighter 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.
Swings around
Their relationship swings around — sometimes tight, sometimes loose. Don't trust a single snapshot.
Explore
Advanced
Statistics
In sync(i)
55%
Headline metric
Movement correlation(i)
+23%
Based on % moves
95% CI
+15% → +31%
Likely range of correlation
Pipeline
Pipeline Summary
541 paired data points survived the daily window.
Raw input
1,206
588
Normalized
1,206
588
Prepared
1,206
588
Aligned
541
541
Invalid removed
R²(i)
6%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points(i)
538
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
+23%
No shift — both series at their actual dates.
538 overlapping points at this shift
Baseline
+23%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+23%
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
+34%
78 periods · Return correlation when both series rose
Both Falling
+42%
64 periods · Return correlation when both series fell
Diverging
-60%
105 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
712
A: 665 / B: 47
Series A
Coherent Corp. (COHR)
COHR
Stock · 1,206 raw → 1,206 prepared
Series B
Velo3D, Inc. Common stock (VELO)
VELO
Stock · 588 raw → 588 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
6
Estimated crossover points between normalized spreads.
Slope
0.4462
Linear regression slope.
Intercept
0.0014
Linear regression intercept.
Saved 5 months ago · ID: stock-cohr_stock-velo_daily_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.