CorrlensCorrlens
Correlate

Correlation Analysis

F5, Inc. Common Stock vs NetFlix Inc

FFIV vs NFLX

+0.909

Very strong positive

When one moves up, the other tends to follow.

FFIV logo

F5, Inc. Common Stock

FFIV

F5 is a market leader in the application delivery controller market. The company sells products for security, application performance, and automation. Its three customer verticals are enterprises, service providers, and government entities. Revenue is evenly split between its services business and products business with revenue trending toward products due to software adoption. The Seattle-based firm was incorporated in 1996, and went public in 1999.

Market cap 17.4B · 6,578 employees

NFLX logo

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

Apr 9, 2021 — Apr 7, 2026Daily1,254 data pointsStockStockConsumer

Time Series

Relative Performance

Green: FFIVGray: NFLX36 of 1,254 points (sampled)

Who Moves First

NFLX leads FFIV by 6 days

NFLX tends to move before FFIV.

After testing 13 timing shifts, the strongest relationship was +0.912 (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

+0.605

19 periods · Return correlation when both series rose

Both Falling

+0.681

6 periods · Return correlation when both series fell

Diverging

-0.463

10 periods · Return correlation when series moved apart

R-Squared

82.6%

Share of variance in one series explained by the other.

Trend Agreement

62.3%

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: [0.899, 0.918]

Scatter

XY Regression

127.3150200250300341.510.720406080100120133.2F5, Inc. Common StockNetFlix IncData pointsFit (r = 0.909)

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

FFIV logo

F5, Inc. Common Stock

FFIV

Market cap 17.4B · 6,578 employees

Stock · 1,254 raw → 1,254 prepared

Series B

NFLX logo

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

30

Estimated crossover points between normalized spreads.

Slope

0.5138

Linear regression slope.

Intercept

-43.9947

Linear regression intercept.

Related Extremes

Highest and Lowest Correlated

Saved 4 hours ago · ID: stock-ffiv-vs-stock-nflx-daily