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LQD vs QQQ: Correlation

iShares iBoxx Investment Grade Corporate Bond ETF (LQD) and Invesco QQQ Trust (QQQ) show a weak relationship: their 3-year correlation of weekly returns is 0.25.

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

Correlation (3Y)
0.25
weak
Correlation (1Y)
0.38
last 12 months
Correlation (5Y)
0.38
long-run
Ann. covariance
35.5
%² · weekly, annualized

How correlated are LQD and QQQ?

On 3 years of weekly data the LQD/QQQ correlation comes out at 0.25, weak. Lately the two have moved closer together, with the 1-year correlation at 0.38 versus 0.25 over 3 years. The 5-year figure is 0.38, and annualized covariance runs at 35.5 %².

Within LQD's tracked universe of 33 assets, QQQ comes in at #23 by 3-year correlation. The last year tells two different stories: QQQ led by 24.8 percentage points, +1.5% for LQD against +26.3% for QQQ. Do not treat this figure as fixed: across three years the rolling one-year correlation ranged all the way from -0.12 to 0.55. Note the risk asymmetry: QQQ runs 2.7 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.

+1.0+0.50-0.5-1.020232026-08-27
One-year correlation, rolled weekly across the last 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.

LQD vs QQQ: side by side

LQD (iShares iBoxx Investment Grade Corporate Bond ETF)QQQ (Invesco QQQ Trust)
1-year return+1.5%+26.3%
5-year return-4.1%+95.4%
Volatility (ann.)7.3%19.6%
Beta vs S&P 5000.151.28
Max drawdown (3Y)-6.7%-22.8%
Dividend yield4.66%0.44%
Expense ratio0.14%0.18%
Assets under management$33.0B$452.8B
Sector / categoryETF · BondsETF · US Growth & Tech
Lower fee: LQD 0.14% vs 0.18%Higher yield: LQD 4.66% vs 0.44%Smaller drawdown: LQD -6.7% vs -22.8%Higher 5y return: QQQ +95.4% vs -4.1%

LQD, iShares's Corporate Bond fund, carries $33.0B under management, a 0.14% expense ratio, a 4.66% trailing dividend yield. QQQ is a Large Growth fund from Invesco: $452.8B under management, 104 holdings, a 0.18% expense ratio, a 0.44% trailing dividend yield.

-2%0%+29%2025-09-052026-08-27
Twelve months of weekly closes, each series rebased to 100. LQD · QQQ

Year-by-year returns

YearLQDQQQ
2022-17.9%-32.6%
2023+9.4%+54.9%
2024+0.9%+25.6%
2025+7.9%+20.8%
2026-0.5%+17.7%

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

Are LQD and QQQ good diversifiers for each other?

A fair diversifier. At 0.25, enough of each asset's movement is its own that the pair has smoothed outcomes historically.

FAQ

What is the correlation between LQD and QQQ?

The LQD/QQQ correlation stands at 0.25 on a 3-year window (1 year: 0.38, 5 years: 0.38), computed from weekly returns as of 2026-08-27.

Is QQQ a good diversifier for LQD?

A fair diversifier. At 0.25, enough of each asset's movement is its own that the pair has smoothed outcomes historically.

What does a correlation of 0.25 mean?

On the −1 to +1 scale, 0.25 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.

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LQD vs QQQ: 3-year weekly correlation 0.25LQD vs QQQ0.25

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Hubs: LQD correlations · QQQ correlations