SFIX vs SPY: Correlation
Measured on weekly returns over the past three years, Stitch Fix, Inc. (SFIX) and SPDR S&P 500 ETF Trust (SPY) carry a correlation of 0.33, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are SFIX and SPY?
On 3 years of weekly data the SFIX/SPY correlation comes out at 0.33, moderate. Lately the two have drifted apart, with the 1-year correlation at 0.15 versus 0.33 over 3 years. The 5-year figure is 0.41, and annualized covariance runs at 357.7 %².
SPY is close to the least connected end of SFIX's tracked universe, ranking #6 of 10. Correlation aside, the last 12 months split them widely, with SPY ahead by 64.1 points (-43.5% versus +20.6%). Risk is not evenly split, since SFIX carries 5.1 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.
SFIX vs SPY: side by side
| SFIX (Stitch Fix, Inc.) | SPY (SPDR S&P 500 ETF Trust) | |
|---|---|---|
| 1-year return | -43.5% | +20.6% |
| 5-year return | -92.6% | +82.4% |
| Volatility (ann.) | 74.6% | 14.5% |
| Beta vs S&P 500 | 1.71 | 1.00 |
| Max drawdown (3Y) | -58.6% | -18.8% |
| Market cap | $0.4B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 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 | SFIX | SPY |
|---|---|---|
| 2022 | -83.6% | -18.2% |
| 2023 | +14.8% | +26.2% |
| 2024 | +20.7% | +24.9% |
| 2025 | +21.8% | +17.7% |
| 2026 | -41.1% | +13.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are SFIX and SPY good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.33 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between SFIX and SPY?
The SFIX/SPY correlation stands at 0.33 on a 3-year window (1 year: 0.15, 5 years: 0.41), computed from weekly returns as of 2026-08-27.
Is SPY a good diversifier for SFIX?
Yes, to a useful degree: a correlation of 0.33 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.33 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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Related comparisons
Hubs: SFIX correlations · SPY correlations
