PairBook
HomePYT › PYT vs SPY

PYT vs SPY: Correlation

How closely do PPlus Tr GSC-2 Tr Ctf Fltg Rate (PYT) 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)
0.22
last 12 months
Correlation (5Y)
0.03
long-run
Ann. covariance
30.8
%² · weekly, annualized

How correlated are PYT and SPY?

On 3 years of weekly data the PYT/SPY correlation comes out at 0.22, weak. Recent behaviour matches the longer record: 0.22 over 1 year against 0.22 over 3. The 5-year figure is 0.03, and annualized covariance runs at 30.8 %².

SPY is close to the least connected end of PYT's tracked universe, ranking #7 of 11. The last year tells two different stories: SPY led by 15.5 percentage points, +5.1% for PYT 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.

PYT vs SPY: side by side

PYT (PPlus Tr GSC-2 Tr Ctf Fltg Rate)SPY (SPDR S&P 500 ETF Trust)
1-year return+5.1%+20.6%
5-year return+19.5%+82.4%
Volatility (ann.)9.7%14.5%
Beta vs S&P 5000.151.00
Max drawdown (3Y)-6.1%-18.8%
Dividend yield1.01%
Expense ratio0.09%
Assets under management$795.3B
Sector / categoryUS ListedETF · US Large Cap
Smaller drawdown: PYT -6.1% vs -18.8%Higher 5y return: SPY +82.4% vs +19.5%

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.

-1%0%+21%2025-09-052026-08-27
Both assets over the last year, indexed to 100 at the starting week. PYT · SPY

Year-by-year returns

YearPYTSPY
2022-14.1%-18.2%
2023+10.8%+26.2%
2024+8.3%+24.9%
2025+8.2%+17.7%
2026+4.7%+13.7%

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

Are PYT 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 PYT and SPY?

As of 2026-08-27, the correlation of weekly returns between PYT and SPY is 0.22 over 3 years, 0.22 over 1 year and 0.03 over 5 years.

Is SPY a good diversifier for PYT?

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/pyt-vs-spy.json

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

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

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

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

Related comparisons

Hubs: PYT correlations · SPY correlations