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CRF vs ETB: Correlation

Cornerstone Total Return Fund, Inc. (The) (CRF) and Eaton Vance Tax-Managed Buy-Write Income Fund Eaton Vance (ETB) show a strong relationship: their 3-year correlation of weekly returns is 0.67.

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

Correlation (3Y)
0.67
strong
Correlation (1Y)
0.58
last 12 months
Correlation (5Y)
0.49
long-run
Ann. covariance
199.7
%² · weekly, annualized

How correlated are CRF and ETB?

On 3 years of weekly data the CRF/ETB correlation comes out at 0.67, strong. Little has changed lately, as the 1-year reading of 0.58 lands near the 3-year figure. The 5-year figure is 0.49, and annualized covariance runs at 199.7 %².

In CRF's tracked universe of 12 assets, ETB sits right near the top at #3. Their recent paths diverged sharply: over the last 12 months ETB outperformed by 15.9 percentage points (-1.7% for CRF against +14.2% for ETB). One caveat on sizing: CRF is 1.5 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.

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.

CRF vs ETB: side by side

CRF (Cornerstone Total Return Fund, Inc. (The))ETB (Eaton Vance Tax-Managed Buy-Write Income Fund Eaton Vance)
1-year return-1.7%+14.2%
5-year return+29.2%+44.4%
Volatility (ann.)21.5%13.9%
Beta vs S&P 5000.910.83
Max drawdown (3Y)-29.6%-20.1%
Market cap$1.1B$0.5B
P/E (trailing)6.37.7
Dividend yield21.80%8.13%
Sector / categoryUS ListedUS Listed
Lower P/E: CRF 6.3 vs 7.7Higher yield: CRF 21.80% vs 8.13%Smaller drawdown: ETB -20.1% vs -29.6%Higher 5y return: ETB +44.4% vs +29.2%
-7%0%+14%2025-09-052026-08-27
Both assets over the last year, indexed to 100 at the starting week. CRF · ETB

Year-by-year returns

YearCRFETB
2022-36.7%-16.6%
2023+19.4%+7.5%
2024+44.5%+26.2%
2025+12.5%+11.2%
2026-9.2%+8.7%

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

Are CRF and ETB good diversifiers for each other?

Only partially. A correlation of 0.67 means CRF and ETB 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 CRF and ETB?

Using weekly returns as of 2026-08-27: 0.67 over 3 years, with 0.58 over the last year and 0.49 over 5 years.

Is ETB a good diversifier for CRF?

Only partially. A correlation of 0.67 means CRF and ETB share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.

What does a correlation of 0.67 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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CRF vs ETB: 3-year weekly correlation 0.67CRF vs ETB0.67

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Hubs: CRF correlations · ETB correlations