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Sandisk Corporation Common Stock (SNDK) vs Case-Shiller Home Price Index
Correlation
of % moves
-47%
In sync
of periods
42%
History
monthsmonths · through 2026-02
13
These move in the same direction about 42% of the time
Their swing sizes loosely mirror each other (~22% of the pattern is shared).
A real but noisy link — useful as context, risky as a standalone signal.
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
Case-Shiller Home Price Index moves ~1 month before SNDK
Watch Case-Shiller Home Price Index for an early read on SNDK.
Advanced
Statistics
In sync(i)
41.7%
Headline metric
Movement correlation(i)
-47%
Based on % moves
95% CI
-82% → +14%
Pipeline
Pipeline Summary
13 paired data points survived the monthly window.
Raw input
317
470
Normalized
317
470
Prepared
16
470
Aligned
13
13
Invalid removed
Likely range of correlation
R²(i)
22.1%
Variance explained
Significance
n.s.
Statistical confidence
Data points
13
Limited
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: -2 to 2 months.
Selected shift
-1 month
Correlation at this shift
-73%
+26% stronger than no-shift baseline
Case-Shiller Home Price Index shifted 1 month later. Reads: "Does Sandisk Corporation Common Stock (SNDK) today line up with Case-Shiller Home Price Index 1 month ago?"
11 overlapping points at this shift
Baseline
-47%
No-shift correlation, matching the main time-series chart above.
Peak shift
-1 month
-73%
A non-zero peak suggests one series lines up better when shifted against the other.
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
N/A
4 periods · Return correlation when both series rose
Both Falling
N/A
1 periods · Return correlation when both series fell
Diverging
-32%
7 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
460
A: 3 / B: 457
Series A
Sandisk Corporation Common Stock (SNDK)
SNDK
Stock · 317 raw → 16 prepared
Series B
Case-Shiller Home Price Index
CSUSHPINSA
FRED · 470 raw → 470 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
1
Estimated crossover points between normalized spreads.
Slope
-0.0058
Linear regression slope.
Intercept
0.0018
Linear regression intercept.
Saved 3 weeks ago · ID: fred-csushpinsa_stock-sndk_monthly_5y