Correlation Analysis
Amazon.Com Inc vs Reddit, Inc.
AMZN vs RDDT
+0.899
Very 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
Reddit, Inc.
↗RDDT
Reddit is a social media platform where users can engage in conversations, explore, and create communities centered around their interests. Founded in 2005 by Steve Huffman and Alexis Ohanian, Reddit has evolved into a vast network of user-generated content organized into specialized forums known as "subreddits." The platform's unique community-driven model relies on volunteer moderators to manage content and maintain subreddit guidelines. Reddit generates revenue through advertising, Premium Memberships, and data licensing agreements.
Market cap 26.4B · 2,555 employees
Time Series
Relative Performance
Who Moves First
in sync
AMZN and RDDT tend to move at the same time.
After testing 13 timing shifts, the strongest relationship was +0.899 (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
+0.550
11 periods · Return correlation when both series rose
Both Falling
+0.178
8 periods · Return correlation when both series fell
Diverging
-0.382
16 periods · Return correlation when series moved apart
R-Squared
80.8%
Share of variance in one series explained by the other.
Trend Agreement
63.0%
How often both series moved in the same direction period-to-period.
Overlap Quality
512
Robust shared window — 512 usable pairs.
Significance
p < 0.001
95% CI: [0.881, 0.914]
Scatter
XY Regression
Pipeline
Data quality details
Pipeline
Data quality details
Pipeline Summary
512 paired data points survived the daily window.
Raw input
1,254
512
Normalized
1,254
512
Prepared
1,254
512
Aligned
512
512
Invalid removed
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
742
A: 742 / B: 0
Series A
Amazon.Com Inc
AMZN
Market cap 2.3T
Stock · 1,254 raw → 1,254 prepared
Series B
Reddit, Inc.
RDDT
Market cap 26.4B · 2,555 employees
Stock · 512 raw → 512 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
26
Estimated crossover points between normalized spreads.
Slope
2.7059
Linear regression slope.
Intercept
-424.2841
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 5 hours ago · ID: stock-amzn-vs-stock-rddt-daily-20260408-d09dhm