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IBKR vs XLK: Correlation

Measured on weekly returns over the past three years, Interactive Brokers (IBKR) and Technology Select Sector SPDR Fund (XLK) carry a correlation of 0.56, a moderate link.

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

Correlation (3Y)
0.56
moderate
Correlation (1Y)
0.59
last 12 months
Correlation (5Y)
0.50
long-run
Ann. covariance
457.2
%² · weekly, annualized

How correlated are IBKR and XLK?

On 3 years of weekly data the IBKR/XLK correlation comes out at 0.56, moderate. The relationship has been stable: the 1-year correlation (0.59) sits close to the 3-year figure. The 5-year figure is 0.50, and annualized covariance runs at 457.2 %².

By 3-year correlation, XLK places #15 of the 32 assets tracked against IBKR. The trailing year gives IBKR the advantage: +57.0% versus +43.4%, a 13.6-point spread. The relationship is regime-dependent: the rolling one-year correlation swung between 0.04 and 0.79 over the past three years, so this pair behaves very differently depending on the market environment.

+1.0+0.50-0.5-1.020232026-08-27
How the one-year correlation itself moved over the past three years.
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.

IBKR vs XLK: side by side

IBKR (Interactive Brokers)XLK (Technology Select Sector SPDR Fund)
1-year return+57.0%+43.4%
5-year return+516.0%+145.2%
Volatility (ann.)33.9%24.0%
Beta vs S&P 5001.371.50
Max drawdown (3Y)-38.7%-25.7%
Market cap$164.5B
P/E (trailing)38.5
Dividend yield0.34%0.45%
Expense ratio0.08%
Assets under management$115.4B
Sector / categoryFinancialsSector ETF
Higher yield: XLK 0.45% vs 0.34%Smaller drawdown: XLK -25.7% vs -38.7%Higher 5y return: IBKR +516.0% vs +145.2%

On the fund side, XLK sits in the Technology category at State Street Investment Management, with $115.4B under management, 73 holdings, a 0.08% expense ratio, a 0.45% trailing dividend yield.

-1%0%+61%2025-09-052026-08-27
Price paths over the last 12 months, both indexed to 100 at the start (weekly closes). IBKR · XLK

Year-by-year returns

YearIBKRXLK
2022-8.4%-27.7%
2023+15.1%+56.0%
2024+114.4%+21.6%
2025+46.4%+24.6%
2026+50.4%+31.3%

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

Are IBKR and XLK good diversifiers for each other?

Only partially. A correlation of 0.56 means IBKR and XLK 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 IBKR and XLK?

Using weekly returns as of 2026-08-27: 0.56 over 3 years, with 0.59 over the last year and 0.50 over 5 years.

Is XLK a good diversifier for IBKR?

Only partially. A correlation of 0.56 means IBKR and XLK share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.

What does a correlation of 0.56 mean?

Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.

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IBKR vs XLK: 3-year weekly correlation 0.56IBKR vs XLK0.56

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Hubs: IBKR correlations · XLK correlations