PairBook
HomeFBIZ › FBIZ vs SPY

FBIZ vs SPY: Correlation

How closely do First Business Financial Services, Inc. (FBIZ) and SPDR S&P 500 ETF Trust (SPY) trade together? Their weekly returns over three years give a correlation of 0.38, which is moderate.

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

Correlation (3Y)
0.38
moderate
Correlation (1Y)
0.21
last 12 months
Correlation (5Y)
0.33
long-run
Ann. covariance
165.5
%² · weekly, annualized

How correlated are FBIZ and SPY?

On 3 years of weekly data the FBIZ/SPY correlation comes out at 0.38, moderate. The past 12 months show a weaker link (0.21) than the 3-year average (0.38). The 5-year figure is 0.33, and annualized covariance runs at 165.5 %².

Out of 13 assets tracked against FBIZ, SPY lands near the bottom at #9. Correlation aside, the last 12 months split them widely, with FBIZ ahead by 17.4 points (+38.0% versus +20.6%). Risk is not evenly split, since FBIZ carries 2.1 times the volatility of the other side.

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.

FBIZ vs SPY: side by side

FBIZ (First Business Financial Services, Inc.)SPY (SPDR S&P 500 ETF Trust)
1-year return+38.0%+20.6%
5-year return+187.1%+82.4%
Volatility (ann.)30.0%14.5%
Beta vs S&P 5000.791.00
Max drawdown (3Y)-20.8%-18.8%
Market cap$0.6B
P/E (trailing)10.6
Dividend yield1.80%1.01%
Expense ratio0.09%
Assets under management$795.3B
Sector / categoryUS ListedETF · US Large Cap
Higher yield: FBIZ 1.80% vs 1.01%Smaller drawdown: SPY -18.8% vs -20.8%Higher 5y return: FBIZ +187.1% vs +82.4%

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.

-7%0%+40%2025-09-052026-08-27
Both assets over the last year, indexed to 100 at the starting week. FBIZ · SPY

Year-by-year returns

YearFBIZSPY
2022+28.2%-18.2%
2023+12.9%+26.2%
2024+18.4%+24.9%
2025+20.1%+17.7%
2026+32.6%+13.7%

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

Are FBIZ and SPY good diversifiers for each other?

A fair diversifier. At 0.38, enough of each asset's movement is its own that the pair has smoothed outcomes historically.

FAQ

What is the correlation between FBIZ and SPY?

The FBIZ/SPY correlation stands at 0.38 on a 3-year window (1 year: 0.21, 5 years: 0.33), computed from weekly returns as of 2026-08-27.

Is SPY a good diversifier for FBIZ?

A fair diversifier. At 0.38, enough of each asset's movement is its own that the pair has smoothed outcomes historically.

What does a correlation of 0.38 mean?

On the −1 to +1 scale, 0.38 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/fbiz-vs-spy.json

FBIZ vs SPY: 3-year weekly correlation 0.38FBIZ vs SPY0.38

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

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

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

Related comparisons

Hubs: FBIZ correlations · SPY correlations