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Correlation
of % moves
+21%
In sync
of periods
53%
History
daysdays · through 2026-08-07
366
These move in the same direction about 53% of the time
Their swing sizes only faintly line up (~4% of the pattern is shared).
Roughly random — these don't track each other in a meaningful way.
On a log scale so equal % moves take equal vertical space — best when one series has grown much faster than the other.
What to Watch
Unusual right now
Recently tighter than usual — the pair is behaving differently than its long-run pattern.
Tighter in drawdowns
The relationship is stronger when both prices are falling than when both are rising — typical risk-off behaviour.
Mostly stable
The relationship drifts a little but stays in the same neighbourhood.
Advanced
Statistics
In sync(i)
53%
Headline metric
Movement correlation(i)
+21%
Based on % moves
95% CI
+11% → +30%
Likely range of correlation
Pipeline
Pipeline Summary
366 paired data points survived the daily window.
Raw input
366
1,216
Normalized
366
1,216
Prepared
366
1,216
Aligned
366
366
Invalid removed
R²(i)
4%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points(i)
365
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
+21%
No shift — both series at their actual dates.
365 overlapping points at this shift
Baseline
+21%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+21%
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
+26%
75 periods · Return correlation when both series rose
Both Falling
+70%
69 periods · Return correlation when both series fell
Diverging
-34%
105 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
850
A: 0 / B: 850
Series A
Sandisk Corporation Common Stock (SNDK)
SNDK
Stock · 366 raw → 366 prepared
Series B
Wolfspeed, Inc. (WOLF)
WOLF
Stock · 1,216 raw → 1,216 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
3
Estimated crossover points between normalized spreads.
Slope
0.6231
Linear regression slope.
Intercept
-0.0010
Linear regression intercept.
Saved 3 months ago · ID: stock-sndk_stock-wolf_daily_5y