Correlation Analysis
Meta Platforms, Inc. Class A Common Stock vs Sandisk Corporation Common Stock
META vs SNDK
-0.216
Light inverse
When one moves up, the other tends to move down.
Meta Platforms, Inc. Class A Common Stock
↗META
Meta is the largest social media company in the world, boasting close to 4 billion monthly active users worldwide. The firm's "Family of Apps," its core business, consists of Facebook, Instagram, Messenger, and WhatsApp. End users can leverage these applications for a variety of different purposes, from keeping in touch with friends to following celebrities and running digital businesses for free. Meta packages customer data, gleaned from its application ecosystem and sells ads to digital advertisers. While the firm has been investing heavily in its Reality Labs business, it remains a very small part of Meta's overall sales.
Market cap 1.4T
Sandisk Corporation Common Stock
↗SNDK
Sandisk is one of the five largest suppliers of NAND flash memory semiconductors globally. Sandisk is vertically integrated, producing substantially all of its flash chips at manufacturing sites across Japan via a joint-venture framework with Kioxia. Sandisk then repackages most of its chips into SSDs for consumer electronics, external storage, or cloud storage. Sandisk was formerly a piece of Western Digital for nine years (after being acquired in 2016) and was spun off as an independent company in 2025.
Market cap 107B · 11,000 employees
Time Series
Rebased to 100
Who Moves First
SNDK leads META by 6 days
SNDK tends to move before META.
Best correlation after shifting: -0.247 (13 shifts scanned)
Do They Crash Together?
Correlation by Market Regime
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
-0.011
10 periods · Return correlation when both series rose
Both Falling
+0.364
5 periods · Return correlation when both series fell
Diverging
-0.389
20 periods · Return correlation when series moved apart
R-Squared
4.7%
Share of variance in one series explained by the other.
Trend Agreement
56.4%
How often both series moved in the same direction period-to-period.
Overlap Quality
281
Robust shared window — 281 usable pairs.
Significance
p < 0.001
95% CI: [-0.325, -0.102]
Scatter
XY Regression
Pipeline
Data quality details
Pipeline
Data quality details
Pipeline Summary
281 paired observations survived the daily window.
Raw input
1,107
281
Normalized
1,107
281
Prepared
1,107
281
Aligned
281
281
Invalid removed
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
826
A: 826 / B: 0
Series A
Meta Platforms, Inc. Class A Common Stock
META
Market cap 1.4T
Stock · 1,107 raw → 1,107 prepared
Series B
Sandisk Corporation Common Stock
SNDK
Market cap 107B · 11,000 employees
Stock · 281 raw → 281 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
3
Estimated crossover points between normalized spreads.
Slope
-0.7122
Linear regression slope.
Intercept
676.6464
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
META
Meta Platforms, Inc. Class A Common Stock
Highest
+0.979
PCEC96
PCEC96 · 52 observations
Lowest
-0.939
United Parcel Service, Inc. Class B
UPS · 1,107 observations
SNDK
Sandisk Corporation Common Stock
Highest
+0.964
Micron Technology, Inc.
MU · 281 observations
Lowest
-0.749
VISA Inc.
V · 281 observations
Saved 3 hours ago · ID: stock-meta-vs-stock-sndk-daily-20260408-mp8kce