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EXLS vs ZG: Correlation

How closely do ExlService Holdings, Inc. (EXLS) and Zillow Group, Inc. (ZG) trade together? Their weekly returns over three years give a correlation of 0.55, which is moderate.

Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology

Correlation (3Y)
0.55
moderate
Correlation (1Y)
0.66
last 12 months
Correlation (5Y)
0.34
long-run
Ann. covariance
815.1
%² · weekly, annualized

How correlated are EXLS and ZG?

On 3 years of weekly data the EXLS/ZG correlation comes out at 0.55, moderate. The past 12 months show a tighter link (0.66) than the 3-year average (0.55). The 5-year figure is 0.34, and annualized covariance runs at 815.1 %².

Within EXLS's tracked universe of 47 assets, ZG comes in at #26 by 3-year correlation. The last year tells two different stories: EXLS led by 42.1 percentage points, -13.4% for EXLS against -55.5% for ZG.

How is this computed?

Pearson correlation on weekly returns: ρ(A,B) = cov(rA, rB) / (σA · σB), over windows of 52, 156 and 260 weeks. Covariance is annualized (×52) and expressed in %². Full definitions on the methodology page.

EXLS vs ZG: side by side

EXLS (ExlService Holdings, Inc.)ZG (Zillow Group, Inc.)
1-year return-13.4%-55.5%
5-year return+55.2%-62.1%
Volatility (ann.)31.7%46.8%
Beta vs S&P 5000.771.28
Max drawdown (3Y)-51.3%-66.4%
Market cap$5.8B$8.2B
P/E (trailing)23.7158.0
Dividend yield0.00%0.00%
Sector / categoryUS ListedUS Listed
Lower P/E: EXLS 23.7 vs 158.0Smaller drawdown: EXLS -51.3% vs -66.4%Higher 5y return: EXLS +55.2% vs -62.1%
-64%0%2025-09-052026-08-27
Twelve months of weekly closes, each series rebased to 100. EXLS · ZG

Year-by-year returns

YearEXLSZG
2022+17.0%-49.8%
2023-9.0%+81.7%
2024+43.9%+24.9%
2025-4.4%-3.7%
2026-10.0%-46.7%

Calendar-year price returns; the current year is year-to-date as of the data date above.

Are EXLS and ZG good diversifiers for each other?

Only partially. A correlation of 0.55 means EXLS and ZG share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.

FAQ

What is the correlation between EXLS and ZG?

As of 2026-08-27, the correlation of weekly returns between EXLS and ZG is 0.55 over 3 years, 0.66 over 1 year and 0.34 over 5 years.

Is ZG a good diversifier for EXLS?

Only partially. A correlation of 0.55 means EXLS and ZG share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.

What does a correlation of 0.55 mean?

On the −1 to +1 scale, 0.55 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.

Use this data

JSON API · no key required
$ curl https://www.pairbook.io/api/v1/pairs/exls-vs-zg.json

EXLS vs ZG: 3-year weekly correlation 0.55EXLS vs ZG0.55

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Related comparisons

Hubs: EXLS correlations · ZG correlations