NMFC vs SPY: Correlation
Measured on weekly returns over the past three years, New Mountain Finance Corporation (NMFC) and SPDR S&P 500 ETF Trust (SPY) carry a correlation of 0.39, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are NMFC and SPY?
On 3 years of weekly data the NMFC/SPY correlation comes out at 0.39, moderate. The relationship has been stable: the 1-year correlation (0.42) sits close to the 3-year figure. The 5-year figure is 0.45, and annualized covariance runs at 109.9 %².
By 3-year correlation, SPY places #17 of the 22 assets tracked against NMFC. Correlation aside, the last 12 months split them widely, with SPY ahead by 36.7 points (-16.1% versus +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.
NMFC vs SPY: side by side
| NMFC (New Mountain Finance Corporation) | SPY (SPDR S&P 500 ETF Trust) | |
|---|---|---|
| 1-year return | -16.1% | +20.6% |
| 5-year return | +1.4% | +82.4% |
| Volatility (ann.) | 19.7% | 14.5% |
| Beta vs S&P 500 | 0.53 | 1.00 |
| Max drawdown (3Y) | -30.6% | -18.8% |
| Market cap | $0.7B | – |
| P/E (trailing) | – | – |
| Dividend yield | 15.98% | 1.01% |
| Expense ratio | – | 0.09% |
| Assets under management | – | $795.3B |
| Sector / category | US Listed | ETF · US Large Cap |
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.
Year-by-year returns
| Year | NMFC | SPY |
|---|---|---|
| 2022 | -0.6% | -18.2% |
| 2023 | +15.8% | +26.2% |
| 2024 | -0.9% | +24.9% |
| 2025 | -7.2% | +17.7% |
| 2026 | -10.9% | +13.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are NMFC and SPY good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.39 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between NMFC and SPY?
The NMFC/SPY correlation stands at 0.39 on a 3-year window (1 year: 0.42, 5 years: 0.45), computed from weekly returns as of 2026-08-27.
Is SPY a good diversifier for NMFC?
Yes, to a useful degree: a correlation of 0.39 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.39 mean?
On the −1 to +1 scale, 0.39 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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Related comparisons
Hubs: NMFC correlations · SPY correlations
