PairBook
HomeBNL › BNL vs SPY

BNL vs SPY: Correlation

How closely do Bro (BNL) and SPDR S&P 500 ETF Trust (SPY) trade together? Their weekly returns over three years give a correlation of 0.22, which is weak.

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

Correlation (3Y)
0.22
weak
Correlation (1Y)
0.08
last 12 months
Correlation (5Y)
0.42
long-run
Ann. covariance
65.3
%² · weekly, annualized

How correlated are BNL and SPY?

Over the past 3 years, BNL and SPY moved with a correlation of 0.22, which is weak. The past 12 months show a weaker link (0.08) than the 3-year average (0.22). Over 5 years the correlation is 0.42, and the annualized covariance of weekly returns is 65.3 %².

Among the 13 assets we track against BNL, SPY sits near the bottom by co-movement, at rank #9. Their 12-month results are close: +22.4% for BNL against +20.6% for SPY.

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.

BNL vs SPY: side by side

BNL (Bro)SPY (SPDR S&P 500 ETF Trust)
1-year return+22.4%+20.6%
5-year return+7.7%+82.4%
Volatility (ann.)21.0%14.5%
Beta vs S&P 5000.311.00
Max drawdown (3Y)-19.5%-18.8%
Market cap$4.5B
P/E (trailing)28.2
Dividend yield5.47%1.01%
Expense ratio0.09%
Assets under management$795.3B
Sector / categoryUS ListedETF · US Large Cap
Higher yield: BNL 5.47% vs 1.01%Smaller drawdown: SPY -18.8% vs -19.5%Higher 5y return: SPY +82.4% vs +7.7%

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.

-5%0%+30%2025-09-052026-08-27
Both assets over the last year, indexed to 100 at the starting week. BNL · SPY

Year-by-year returns

YearBNLSPY
2022-30.8%-18.2%
2023+14.0%+26.2%
2024-1.1%+24.9%
2025+17.3%+17.7%
2026+25.3%+13.7%

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

Are BNL and SPY good diversifiers for each other?

Yes, to a useful degree: a correlation of 0.22 leaves real independence between the two, which historically damped combined volatility.

FAQ

What is the correlation between BNL and SPY?

The BNL/SPY correlation stands at 0.22 on a 3-year window (1 year: 0.08, 5 years: 0.42), computed from weekly returns as of 2026-08-27.

Is SPY a good diversifier for BNL?

Yes, to a useful degree: a correlation of 0.22 leaves real independence between the two, which historically damped combined volatility.

What does a correlation of 0.22 mean?

A reading of 0.22 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/bnl-vs-spy.json

BNL vs SPY: 3-year weekly correlation 0.22BNL vs SPY0.22

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

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

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

Related comparisons

Hubs: BNL correlations · SPY correlations