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NFJ vs SPY: Correlation

How closely do Virtus Dividend, Interest & Premium Strategy Fund (NFJ) and SPDR S&P 500 ETF Trust (SPY) trade together? Their weekly returns over three years give a correlation of 0.76, which is strong.

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

Correlation (3Y)
0.76
strong
Correlation (1Y)
0.72
last 12 months
Correlation (5Y)
0.85
long-run
Ann. covariance
151.9
%² · weekly, annualized

How correlated are NFJ and SPY?

On 3 years of weekly data the NFJ/SPY correlation comes out at 0.76, strong. The relationship has been stable: the 1-year correlation (0.72) sits close to the 3-year figure. The 5-year figure is 0.85, and annualized covariance runs at 151.9 %².

Within NFJ's tracked universe of 34 assets, SPY comes in at #8 by 3-year correlation. Over the last 12 months NFJ came out ahead by 10.4 percentage points (+31.0% against +20.6%).

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.

NFJ vs SPY: side by side

NFJ (Virtus Dividend, Interest & Premium Strategy Fund)SPY (SPDR S&P 500 ETF Trust)
1-year return+31.0%+20.6%
5-year return+50.8%+82.4%
Volatility (ann.)13.8%14.5%
Beta vs S&P 5000.731.00
Max drawdown (3Y)-17.0%-18.8%
Market cap$1.5B
P/E (trailing)9.8
Dividend yield7.83%1.01%
Expense ratio0.09%
Assets under management$795.3B
Sector / categoryUS ListedETF · US Large Cap
Higher yield: NFJ 7.83% vs 1.01%Smaller drawdown: NFJ -17.0% vs -18.8%Higher 5y return: SPY +82.4% vs +50.8%

SPY is a Large Blend fund from State Street Investment Management: $795.3B under management, 504 holdings, a 0.09% expense ratio, a 1.01% trailing dividend yield.

-2%0%+32%2025-09-052026-08-27
Both assets over the last year, indexed to 100 at the starting week. NFJ · SPY

Year-by-year returns

YearNFJSPY
2022-23.9%-18.2%
2023+21.3%+26.2%
2024+10.0%+24.9%
2025+12.4%+17.7%
2026+26.1%+13.7%

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

Are NFJ and SPY good diversifiers for each other?

Only partially. A correlation of 0.76 means NFJ and SPY 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 NFJ and SPY?

The NFJ/SPY correlation stands at 0.76 on a 3-year window (1 year: 0.72, 5 years: 0.85), computed from weekly returns as of 2026-08-27.

Is SPY a good diversifier for NFJ?

Only partially. A correlation of 0.76 means NFJ and SPY share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.

What does a correlation of 0.76 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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NFJ vs SPY: 3-year weekly correlation 0.76NFJ vs SPY0.76

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Hubs: NFJ correlations · SPY correlations