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QCLS vs WRB: Correlation

Measured on weekly returns over the past three years, Q/C Technologies, Inc. (QCLS) and W. R. Berkley Corporation (WRB) carry a correlation of -0.37, a negative link.

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

Correlation (3Y)
-0.37
negative
Correlation (1Y)
-0.51
last 12 months
Correlation (5Y)
-0.21
long-run
Ann. covariance
-903.3
%² · weekly, annualized

How correlated are QCLS and WRB?

Over the past 3 years, QCLS and WRB moved with a correlation of -0.37, which is negative, meaning they tend to move in opposite directions. Lately the two have drifted apart, with the 1-year correlation at -0.51 versus -0.37 over 3 years. Over 5 years the correlation is -0.21, and the annualized covariance of weekly returns is -903.3 %².

Out of 16 assets tracked against QCLS, WRB lands near the bottom at #16. Correlation aside, the last 12 months split them widely, with WRB ahead by 71.7 points (-73.7% versus -2.0%). Note the risk asymmetry: QCLS runs 4.8 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.

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.

QCLS vs WRB: side by side

QCLS (Q/C Technologies, Inc.)WRB (W. R. Berkley Corporation)
1-year return-73.7%-2.0%
5-year return-100.0%+130.5%
Volatility (ann.)108.9%22.5%
Beta vs S&P 5000.870.19
Max drawdown (3Y)-99.9%-17.6%
Market cap$25.4B
P/E (trailing)14.1
Dividend yield0.00%0.54%
Sector / categoryUS ListedFinancials
Higher yield: WRB 0.54% vs 0.00%Smaller drawdown: WRB -17.6% vs -99.9%Higher 5y return: WRB +130.5% vs -100.0%
-28%0%+108%2025-09-052026-08-27
Both assets over the last year, indexed to 100 at the starting week. QCLS · WRB

Year-by-year returns

YearQCLSWRB
2022-81.0%+33.9%
2023-77.5%+0.2%
2024-85.2%+27.2%
2025-96.5%+23.0%
2026-40.6%-1.5%

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

Are QCLS and WRB good diversifiers for each other?

Yes. With a correlation of -0.37, QCLS and WRB have moved largely independently, which makes them a genuinely diversifying pair by historical standards.

FAQ

What is the correlation between QCLS and WRB?

Using weekly returns as of 2026-08-27: -0.37 over 3 years, with -0.51 over the last year and -0.21 over 5 years.

Is WRB a good diversifier for QCLS?

Yes. With a correlation of -0.37, QCLS and WRB have moved largely independently, which makes them a genuinely diversifying pair by historical standards.

What does a correlation of -0.37 mean?

On the −1 to +1 scale, -0.37 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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QCLS vs WRB: 3-year weekly correlation -0.37QCLS vs WRB-0.37

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Hubs: QCLS correlations · WRB correlations