Correlation Analysis
Tesla, Inc. Common Stock vs Reddit, Inc.
TSLA vs RDDT
+0.870
Very strong positive
When one moves up, the other tends to follow.
Tesla, Inc. Common Stock
↗TSLA
Tesla is a vertically integrated battery electric vehicle automaker and developer of real world artificial intelligence software, which includes autonomous driving and humanoid robots. The company has multiple vehicles in its fleet, which include luxury and midsize sedans, crossover SUVs, a light truck, and a semi truck. Tesla also plans to begin selling a sports car and offer a robotaxi service. Global deliveries in 2025 were nearly 1.64 million vehicles. The company sells batteries for stationary storage for residential and commercial properties including utilities and solar panels and solar roofs for energy generation. Tesla also owns a fast-charging network and an auto insurance business.
Market cap 1.3T
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
RDDT leads TSLA by 1 day
RDDT tends to move before TSLA.
After testing 13 timing shifts, the strongest relationship was +0.870 (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
+0.165
13 periods · Return correlation when both series rose
Both Falling
+0.603
10 periods · Return correlation when both series fell
Diverging
-0.487
12 periods · Return correlation when series moved apart
R-Squared
75.6%
Share of variance in one series explained by the other.
Trend Agreement
61.1%
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: [0.847, 0.889]
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
Tesla, Inc. Common Stock
TSLA
Market cap 1.3T
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
27
Estimated crossover points between normalized spreads.
Slope
0.5877
Linear regression slope.
Intercept
-50.6170
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
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