Correlation Analysis
Amazon.Com Inc vs Toast, Inc.
AMZN vs TOST
+0.725
Strong positive
When one moves up, the other tends to follow.
Amazon.Com Inc
↗AMZN
Amazon is the leading online retailer and marketplace for third party sellers. Retail related revenue represents approximately 74% of total, followed by Amazon Web Services (17%), and advertising services (9%). International segments constitute 22% of Amazon's total revenue, led by Germany, the United Kingdom, and Japan.
Market cap 2.3T
Toast, Inc.
↗TOST
Toast Inc is a cloud-based, all-in-one digital technology platform purpose-built for the restaurant community. The company provides a comprehensive platform of software-as-a-service (SaaS) products and financial technology solutions, including integrated payment processing, restaurant-grade hardware, and a broad ecosystem of third-party partners. It serves as a restaurant operating system, connecting front of house and back of house operations across service models such as dine-in, takeout, and delivery. It operates through one reportable segment consisting of its SaaS products, financial technology solutions, integrated payments, hardware, and partner ecosystem.
Market cap 15.9B · 6,500 employees
Time Series
Relative Performance
Who Moves First
AMZN leads TOST by 4 days
AMZN tends to move before TOST.
After testing 13 timing shifts, the strongest relationship was +0.728 (they moved in the same direction).
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
+0.757
13 periods · Return correlation when both series rose
Both Falling
-0.020
10 periods · Return correlation when both series fell
Diverging
-0.504
12 periods · Return correlation when series moved apart
R-Squared
52.5%
Share of variance in one series explained by the other.
Trend Agreement
67.7%
How often both series moved in the same direction period-to-period.
Overlap Quality
1,139
Deep shared window — 1,139 usable pairs.
Significance
p < 0.001
95% CI: [0.696, 0.751]
Scatter
XY Regression
Pipeline
Data quality details
Pipeline
Data quality details
Pipeline Summary
1,139 paired data points survived the daily window.
Raw input
1,254
1,139
Normalized
1,254
1,139
Prepared
1,254
1,139
Aligned
1,139
1,139
Invalid removed
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
115
A: 115 / B: 0
Series A
Amazon.Com Inc
AMZN
Market cap 2.3T
Stock · 1,254 raw → 1,254 prepared
Series B
Toast, Inc.
TOST
Market cap 15.9B · 6,500 employees
Stock · 1,139 raw → 1,139 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
13
Estimated crossover points between normalized spreads.
Slope
0.1691
Linear regression slope.
Intercept
-0.6547
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 5 hours ago · ID: stock-amzn-vs-stock-tost-daily-20260408-palwhi