Correlation Analysis
Comcast Corp vs NetFlix Inc
CMCSA vs NFLX
-0.381
Light inverse
When one moves up, the other tends to move down.
Comcast Corp
↗CMCSA
Comcast is made up of three parts. The core cable business owns networks capable of providing television, internet access, and phone services to 65 million US homes and businesses, or nearly half of the country. The firm provides services to about 47% of the locations in this territory. Comcast acquired NBCUniversal from General Electric in 2011. Following the spinoff of several cable networks, including CNBC, MSNBC, and USA, NBCU now consists of the NBC network, several local NBC affiliates, Bravo, the Peacock streaming platform, Universal Studios, and several theme parks. Finally, Sky, acquired in 2018, is a large television provider in the UK and Italy.
Market cap 99.5B · 179,000 employees
NetFlix Inc
↗NFLX
Netflix's relatively simple business model involves only one business, its streaming service. It has the biggest television entertainment subscriber base in both the United States and the collective international market, with more than 300 million subscribers globally. Netflix has exposure to nearly the entire global population outside of China. The firm has traditionally avoided a regular slate of live programming or sports content, instead focusing on on-demand access to episodic television, movies, and documentaries. The firm introduced ad-supported subscription plans in 2022, giving the firm exposure to the advertising market in addition to the subscription fees that have historically accounted for nearly all its revenue.
Market cap 417.7B
Time Series
Relative Performance
Who Moves First
NFLX leads CMCSA by 6 days
NFLX tends to move before CMCSA.
After testing 13 timing shifts, the strongest relationship was -0.384 (they moved in opposite directions).
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
-0.147
11 periods · Return correlation when both series rose
Both Falling
-0.029
7 periods · Return correlation when both series fell
Diverging
-0.681
17 periods · Return correlation when series moved apart
R-Squared
14.5%
Share of variance in one series explained by the other.
Trend Agreement
60.4%
How often both series moved in the same direction period-to-period.
Overlap Quality
1,254
Deep shared window — 1,254 usable pairs.
Significance
p < 0.001
95% CI: [-0.428, -0.333]
Scatter
XY Regression
Pipeline
Data quality details
Pipeline
Data quality details
Pipeline Summary
1,254 paired data points survived the daily window.
Raw input
1,254
1,254
Normalized
1,254
1,254
Prepared
1,254
1,254
Aligned
1,254
1,254
Invalid removed
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
0
A: 0 / B: 0
Series A
Comcast Corp
CMCSA
Market cap 99.5B · 179,000 employees
Stock · 1,254 raw → 1,254 prepared
Series B
NetFlix Inc
NFLX
Market cap 417.7B
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
7
Estimated crossover points between normalized spreads.
Slope
-1.4443
Linear regression slope.
Intercept
120.8969
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 5 hours ago · ID: stock-cmcsa-vs-stock-nflx-daily