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Correlation Analysis

NetFlix Inc vs Natera, Inc. Common Stock

NFLX vs NTRA

+0.877

Very strong positive

When one moves up, the other tends to follow.

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

NTRA logo

Natera, Inc. Common Stock

NTRA

Natera Inc is a diagnostic and research company with proprietary molecular and bioinformatics technology. The company's key product offerings include its Panorama Non-Invasive Prenatal Test (NIPT) which screens for chromosomal abnormalities of a fetus as well as in twin pregnancies, typically with a blood draw from the mother, Horizon Carrier Screening (HCS) to determine carrier status for a large number of severe genetic diseases that could be passed on to the carrier's children, Signatera molecular residual disease (MRD) test, which detects circulating tumor DNA in patients previously diagnosed with cancer to assess molecular residual disease and monitor for recurrence; and Prospera, to assess organ transplant rejection.

Market cap 29B · 6,140 employees

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

Time Series

Relative Performance

Green: NFLXGray: NTRA36 of 1,254 points (sampled)

Who Moves First

NFLX leads NTRA by 6 days

NFLX tends to move before NTRA.

After testing 13 timing shifts, the strongest relationship was +0.878 (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

+0.170

17 periods · Return correlation when both series rose

Both Falling

+0.344

9 periods · Return correlation when both series fell

Diverging

-0.840

9 periods · Return correlation when series moved apart

R-Squared

76.9%

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

1,254

Deep shared window — 1,254 usable pairs.

Significance

p < 0.001

95% CI: [0.863, 0.889]

Scatter

XY Regression

10.720406080100120133.22250100150200247.5NetFlix IncNatera, Inc. Common StockData pointsFit (r = 0.877)

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

NFLX logo

NetFlix Inc

NFLX

Market cap 417.7B

Stock · 1,254 raw → 1,254 prepared

Series B

NTRA logo

Natera, Inc. Common Stock

NTRA

Market cap 29B · 6,140 employees

Stock · 1,254 raw → 1,254 prepared

Sign agreement

100.0%

How often both values share the same sign.

Zero crossings

26

Estimated crossover points between normalized spreads.

Slope

1.6254

Linear regression slope.

Intercept

1.8836

Linear regression intercept.

Related Extremes

Highest and Lowest Correlated

Saved 7 hours ago · ID: stock-nflx-vs-stock-ntra-daily