SPY vs WSFS: Correlation
Measured on weekly returns over the past three years, SPDR S&P 500 ETF Trust (SPY) and WSFS Financial Corporation (WSFS) carry a correlation of 0.43, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are SPY and WSFS?
Over the past 3 years, SPY and WSFS moved with a correlation of 0.43, which is moderate. The link has loosened recently: the 1-year correlation (0.13) runs below the 3-year figure (0.43). Over 5 years the correlation is 0.41, and the annualized covariance of weekly returns is 186.9 %².
By 3-year correlation, WSFS places #919 of the 4755 assets tracked against SPY. The trailing year gives WSFS the advantage: +20.6% versus +34.0%, a 13.4-point spread. Risk is not evenly split, since WSFS carries 2.1 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 WSFS: side by side
| SPY (SPDR S&P 500 ETF Trust) | WSFS (WSFS Financial Corporation) | |
|---|---|---|
| 1-year return | +20.6% | +34.0% |
| 5-year return | +82.4% | +85.9% |
| Volatility (ann.) | 14.5% | 29.9% |
| Beta vs S&P 500 | 1.00 | 0.89 |
| Max drawdown (3Y) | -18.8% | -24.7% |
| Market cap | – | $4.0B |
| P/E (trailing) | – | 13.2 |
| Dividend yield | 1.01% | 0.90% |
| Expense ratio | 0.09% | – |
| Assets under management | $795.3B | – |
| Sector / category | ETF · US Large Cap | US Listed |
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 | SPY | WSFS |
|---|---|---|
| 2022 | -18.2% | -8.4% |
| 2023 | +26.2% | +2.9% |
| 2024 | +24.9% | +17.1% |
| 2025 | +17.7% | +5.2% |
| 2026 | +13.7% | +43.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are SPY and WSFS good diversifiers for each other?
Reasonably. At 0.43, SPY and WSFS keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between SPY and WSFS?
As of 2026-08-27, the correlation of weekly returns between SPY and WSFS is 0.43 over 3 years, 0.13 over 1 year and 0.41 over 5 years.
Is WSFS a good diversifier for SPY?
Reasonably. At 0.43, SPY and WSFS keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.43 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-wsfs.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/spy-vs-wsfs/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: SPY correlations · WSFS correlations
