SPY vs ZGN: Correlation
How closely do SPDR S&P 500 ETF Trust (SPY) and Ermenegildo Zegna N.V. (ZGN) trade together? Their weekly returns over three years give a correlation of 0.42, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are SPY and ZGN?
On 3 years of weekly data the SPY/ZGN correlation comes out at 0.42, moderate. Recent behaviour matches the longer record: 0.41 over 1 year against 0.42 over 3. The 5-year figure is 0.35, and annualized covariance runs at 265.2 %².
Among the 4755 assets we track against SPY, ZGN ranks #1003 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months ZGN outperformed by 45.5 percentage points (+20.6% for SPY against +66.1% for ZGN). Risk is not evenly split, since ZGN carries 3.0 times the volatility of the other side.
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.
SPY vs ZGN: side by side
| SPY (SPDR S&P 500 ETF Trust) | ZGN (Ermenegildo Zegna N.V.) | |
|---|---|---|
| 1-year return | +20.6% | +66.1% |
| 5-year return | +82.4% | +34.1% |
| Volatility (ann.) | 14.5% | 43.6% |
| Beta vs S&P 500 | 1.00 | 1.27 |
| Max drawdown (3Y) | -18.8% | -59.0% |
| Market cap | – | $3.7B |
| P/E (trailing) | – | 31.0 |
| Dividend yield | 1.01% | 0.87% |
| Expense ratio | 0.09% | – |
| Assets under management | $795.3B | – |
| Sector / category | ETF · US Large Cap | US Listed |
SPY, State Street Investment Management's Large Blend fund, carries $795.3B under management, 504 holdings, a 0.09% expense ratio, a 1.01% trailing dividend yield.
Year-by-year returns
| Year | SPY | ZGN |
|---|---|---|
| 2022 | -18.2% | +0.8% |
| 2023 | +26.2% | +11.5% |
| 2024 | +24.9% | -27.8% |
| 2025 | +17.7% | +26.0% |
| 2026 | +13.7% | +34.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are SPY and ZGN good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.42 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between SPY and ZGN?
The SPY/ZGN correlation stands at 0.42 on a 3-year window (1 year: 0.41, 5 years: 0.35), computed from weekly returns as of 2026-08-27.
Is ZGN a good diversifier for SPY?
Yes, to a useful degree: a correlation of 0.42 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.42 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.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/spy-vs-zgn.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/spy-vs-zgn/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: SPY correlations · ZGN correlations
