PairBook
HomeCISO › CISO vs SPY

CISO vs SPY: Correlation

CISO Global, Inc. (CISO) and SPDR S&P 500 ETF Trust (SPY) show a weak relationship: their 3-year correlation of weekly returns is 0.16.

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

Correlation (3Y)
0.16
weak
Correlation (1Y)
0.34
last 12 months
Correlation (5Y)
0.14
long-run
Ann. covariance
292.9
%² · weekly, annualized

How correlated are CISO and SPY?

Over the past 3 years, CISO and SPY moved with a correlation of 0.16, which is weak. The link has tightened recently: the 1-year correlation (0.34) runs above the 3-year figure (0.16). Over 5 years the correlation is 0.14, and the annualized covariance of weekly returns is 292.9 %².

SPY is close to the least connected end of CISO's tracked universe, ranking #7 of 10. The last year tells two different stories: SPY led by 96.6 percentage points, -76.0% for CISO against +20.6% for SPY. Risk is not evenly split, since CISO carries 9.0 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.

CISO vs SPY: side by side

CISO (CISO Global, Inc.)SPY (SPDR S&P 500 ETF Trust)
1-year return-76.0%+20.6%
5-year return-99.7%+82.4%
Volatility (ann.)130.3%14.5%
Beta vs S&P 5001.401.00
Max drawdown (3Y)-93.9%-18.8%
Market cap
P/E (trailing)
Dividend yield0.00%1.01%
Expense ratio0.09%
Assets under management$795.3B
Sector / categoryUS ListedETF · US Large Cap
Higher yield: SPY 1.01% vs 0.00%Smaller drawdown: SPY -18.8% vs -93.9%Higher 5y return: SPY +82.4% vs -99.7%

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.

-79%0%+21%2025-09-052026-08-27
Both assets over the last year, indexed to 100 at the starting week. CISO · SPY

Year-by-year returns

YearCISOSPY
2022-18.2%
2023-96.0%+26.2%
2024+126.8%+24.9%
2025-86.2%+17.7%
2026-53.1%+13.7%

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

Are CISO and SPY good diversifiers for each other?

Yes: at 0.16, the two have gone their own ways historically, which is what genuine diversification looks like.

FAQ

What is the correlation between CISO and SPY?

Using weekly returns as of 2026-08-27: 0.16 over 3 years, with 0.34 over the last year and 0.14 over 5 years.

Is SPY a good diversifier for CISO?

Yes: at 0.16, the two have gone their own ways historically, which is what genuine diversification looks like.

What does a correlation of 0.16 mean?

On the −1 to +1 scale, 0.16 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/ciso-vs-spy.json

CISO vs SPY: 3-year weekly correlation 0.16CISO vs SPY0.16

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

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

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

Related comparisons

Hubs: CISO correlations · SPY correlations