Correlation Analysis
Meta Platforms, Inc. Class A Common Stock vs DexCom, Inc.
META vs DXCM
-0.649
Moderate 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
DexCom, Inc.
↗DXCM
DexCom designs and commercializes continuous glucose monitoring systems for diabetic patients. CGM systems serve as an alternative to the traditional blood glucose meter process, and the company is evolving its CGM systems to provide integration with insulin pumps from Insulet and Tandem for automatic insulin delivery. DexCom's CGMs are available through medical equipment distributors as well as retail pharmacies.
Market cap 24.3B · 11,100 employees
Time Series
Rebased to 100
Who Moves First
META leads DXCM by 6 days
META tends to move before DXCM.
Best correlation after shifting: -0.653 (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
-0.043
13 periods · Return correlation when both series rose
Both Falling
-0.229
8 periods · Return correlation when both series fell
Diverging
-0.708
14 periods · Return correlation when series moved apart
R-Squared
42.2%
Share of variance in one series explained by the other.
Trend Agreement
62.6%
How often both series moved in the same direction period-to-period.
Overlap Quality
1,107
Deep shared window — 1,107 usable pairs.
Significance
p < 0.001
95% CI: [-0.682, -0.614]
Scatter
XY Regression
Pipeline
Data quality details
Pipeline
Data quality details
Pipeline Summary
1,107 paired observations survived the daily window.
Raw input
1,107
1,254
Normalized
1,107
1,254
Prepared
1,107
1,254
Aligned
1,107
1,107
Invalid removed
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
147
A: 0 / B: 147
Series A
Meta Platforms, Inc. Class A Common Stock
META
Market cap 1.4T
Stock · 1,107 raw → 1,107 prepared
Series B
DexCom, Inc.
DXCM
Market cap 24.3B · 11,100 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
1
Estimated crossover points between normalized spreads.
Slope
-0.0685
Linear regression slope.
Intercept
125.6665
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
Saved 3 hours ago · ID: stock-meta-vs-stock-dxcm-daily-20260408-ft9wvc