PairBook
HomePOOL › POOL vs SPY

POOL vs SPY: Correlation

Pool Corporation (POOL) and SPDR S&P 500 ETF Trust (SPY) show a moderate relationship: their 3-year correlation of weekly returns is 0.35.

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

Correlation (3Y)
0.35
moderate
Correlation (1Y)
0.26
last 12 months
Correlation (5Y)
0.47
long-run
Ann. covariance
166.4
%² · weekly, annualized

How correlated are POOL and SPY?

On 3 years of weekly data the POOL/SPY correlation comes out at 0.35, moderate. Little has changed lately, as the 1-year reading of 0.26 lands near the 3-year figure. The 5-year figure is 0.47, and annualized covariance runs at 166.4 %².

SPY is close to the least connected end of POOL's tracked universe, ranking #12 of 16. Correlation aside, the last 12 months split them widely, with SPY ahead by 60.6 points (-40.0% versus +20.6%). Note the risk asymmetry: POOL runs 2.2 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.

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.

POOL vs SPY: side by side

POOL (Pool Corporation)SPY (SPDR S&P 500 ETF Trust)
1-year return-40.0%+20.6%
5-year return-59.3%+82.4%
Volatility (ann.)32.4%14.5%
Beta vs S&P 5000.801.00
Max drawdown (3Y)-56.8%-18.8%
Market cap$6.8B
P/E (trailing)17.1
Dividend yield2.68%1.01%
Expense ratio0.09%
Assets under management$795.3B
Sector / categoryUS ListedETF · US Large Cap
Higher yield: POOL 2.68% vs 1.01%Smaller drawdown: SPY -18.8% vs -56.8%Higher 5y return: SPY +82.4% vs -59.3%

SPY is a Large Blend fund from State Street Investment Management: $795.3B under management, 504 holdings, a 0.09% expense ratio, a 1.01% trailing dividend yield.

-46%0%+21%2025-09-052026-08-27
Both assets over the last year, indexed to 100 at the starting week. POOL · SPY

Year-by-year returns

YearPOOLSPY
2022-46.0%-18.2%
2023+33.5%+26.2%
2024-13.4%+24.9%
2025-31.8%+17.7%
2026-17.0%+13.7%

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

Are POOL and SPY good diversifiers for each other?

Yes, to a useful degree: a correlation of 0.35 leaves real independence between the two, which historically damped combined volatility.

FAQ

What is the correlation between POOL and SPY?

The POOL/SPY correlation stands at 0.35 on a 3-year window (1 year: 0.26, 5 years: 0.47), computed from weekly returns as of 2026-08-27.

Is SPY a good diversifier for POOL?

Yes, to a useful degree: a correlation of 0.35 leaves real independence between the two, which historically damped combined volatility.

What does a correlation of 0.35 mean?

A reading of 0.35 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.

Use this data

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

POOL vs SPY: 3-year weekly correlation 0.35POOL vs SPY0.35

Embed this badge (it refreshes with the data), with attribution:

[![POOL vs SPY correlation](https://www.pairbook.io/api/v1/badge/pool-vs-spy.svg)](https://www.pairbook.io/pair/pool-vs-spy/)

Free with attribution; caching and terms are described in the API documentation.

Related comparisons

Hubs: POOL correlations · SPY correlations