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Sandisk Corporation Common Stock (SNDK) vs USD/JPY Exchange Rate
Correlation
of % moves
+9%
In sync
of periods
49%
History
daysdays · through 2026-05-15
307
These move in the same direction about 49% of the time
Their swing sizes only faintly line up (~1% 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
Slipping looser
The recent pattern is looser 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.
Mostly stable
The relationship drifts a little but stays in the same neighbourhood.
Advanced
Statistics
In sync(i)
48.7%
Headline metric
Movement correlation(i)
+9%
Based on % moves
95% CI
-2% → +20%
Likely range of correlation
Pipeline
Pipeline Summary
307 paired data points survived the daily window.
Raw input
317
13,879
Normalized
317
13,879
Prepared
317
13,879
Aligned
307
307
Invalid removed
R²(i)
0.8%
Variance explained
Significance
n.s.
Statistical confidence
Data points
307
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
+9%
No shift — both series at their actual dates.
306 overlapping points at this shift
Baseline
+9%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+9%
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
-23%
76 periods · Return correlation when both series rose
Both Falling
+10%
54 periods · Return correlation when both series fell
Diverging
-41%
119 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
13,582
A: 10 / B: 13572
Series A
Sandisk Corporation Common Stock (SNDK)
SNDK
Stock · 317 raw → 317 prepared
Series B
USD/JPY Exchange Rate
DEXJPUS
FRED · 13,879 raw → 13,879 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
1
Estimated crossover points between normalized spreads.
Slope
0.0089
Linear regression slope.
Intercept
0.0001
Linear regression intercept.
Saved 3 weeks ago · ID: fred-dexjpus_stock-sndk_daily_5y