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GPK vs XLB: Correlation

Measured on weekly returns over the past three years, Graphic Packaging Holding Company (GPK) and Materials Select Sector SPDR Fund (XLB) carry a correlation of 0.51, a moderate link.

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

Correlation (3Y)
0.51
moderate
Correlation (1Y)
0.52
last 12 months
Correlation (5Y)
0.53
long-run
Ann. covariance
263.7
%² · weekly, annualized

How correlated are GPK and XLB?

Over the past 3 years, GPK and XLB moved with a correlation of 0.51, which is moderate. Little has changed lately, as the 1-year reading of 0.52 lands near the 3-year figure. Over 5 years the correlation is 0.53, and the annualized covariance of weekly returns is 263.7 %².

By 3-year correlation, XLB places #5 of the 13 assets tracked against GPK. Their recent paths diverged sharply: over the last 12 months XLB outperformed by 65.3 percentage points (-47.7% for GPK against +17.6% for XLB). Risk is not evenly split, since GPK carries 1.8 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.

GPK vs XLB: side by side

GPK (Graphic Packaging Holding Company)XLB (Materials Select Sector SPDR Fund)
1-year return-47.7%+17.6%
5-year return-39.0%+36.9%
Volatility (ann.)30.7%16.7%
Beta vs S&P 5000.710.72
Max drawdown (3Y)-69.7%-23.2%
Market cap$3.4B
P/E (trailing)17.7
Dividend yield3.84%1.68%
Expense ratio0.08%
Assets under management$8.3B
Sector / categoryUS ListedSector ETF
Higher yield: GPK 3.84% vs 1.68%Smaller drawdown: XLB -23.2% vs -69.7%Higher 5y return: XLB +36.9% vs -39.0%

XLB is a Natural Resources fund from State Street Investment Management: $8.3B under management, 26 holdings, a 0.08% expense ratio, a 1.68% trailing dividend yield.

-58%0%+19%2025-09-052026-08-27
Price paths over the last 12 months, both indexed to 100 at the start (weekly closes). GPK · XLB

Year-by-year returns

YearGPKXLB
2022+15.9%-12.3%
2023+12.7%+12.5%
2024+11.7%+0.1%
2025-43.3%+9.9%
2026-23.1%+18.3%

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

Are GPK and XLB good diversifiers for each other?

Only partially. A correlation of 0.51 means GPK and XLB share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.

FAQ

What is the correlation between GPK and XLB?

The GPK/XLB correlation stands at 0.51 on a 3-year window (1 year: 0.52, 5 years: 0.53), computed from weekly returns as of 2026-08-27.

Is XLB a good diversifier for GPK?

Only partially. A correlation of 0.51 means GPK and XLB share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.

What does a correlation of 0.51 mean?

A reading of 0.51 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.

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GPK vs XLB: 3-year weekly correlation 0.51GPK vs XLB0.51

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Hubs: GPK correlations · XLB correlations