ATI vs XLI: Correlation
How closely do ATI Inc. (ATI) and Industrial Select Sector SPDR Fund (XLI) trade together? Their weekly returns over three years give a correlation of 0.65, which is strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ATI and XLI?
Across a 3-year window, the weekly returns of ATI and XLI correlate at 0.65, strong. Little has changed lately, as the 1-year reading of 0.66 lands near the 3-year figure. Stretching to 5 years gives 0.61, with an annualized covariance of 444.5 %².
XLI is one of the assets that tracks ATI most closely: it ranks #2 out of the 12 assets we track against ATI. The last year tells two different stories: ATI led by 161.2 percentage points, +179.5% for ATI against +18.3% for XLI. One caveat on sizing: ATI is 2.8 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
ATI vs XLI: side by side
| ATI (ATI Inc.) | XLI (Industrial Select Sector SPDR Fund) | |
|---|---|---|
| 1-year return | +179.5% | +18.3% |
| 5-year return | +1095.8% | +84.0% |
| Volatility (ann.) | 43.3% | 15.7% |
| Beta vs S&P 500 | 1.59 | 0.89 |
| Max drawdown (3Y) | -38.0% | -18.5% |
| Market cap | $29.2B | – |
| P/E (trailing) | 62.5 | – |
| Dividend yield | 0.00% | 1.15% |
| Expense ratio | – | 0.08% |
| Assets under management | – | $32.9B |
| Sector / category | US Listed | Sector ETF |
XLI is an Industrials fund from State Street Investment Management: $32.9B under management, 83 holdings, a 0.08% expense ratio, a 1.15% trailing dividend yield.
Year-by-year returns
| Year | ATI | XLI |
|---|---|---|
| 2022 | +87.4% | -5.6% |
| 2023 | +52.3% | +18.1% |
| 2024 | +21.0% | +17.3% |
| 2025 | +108.5% | +19.3% |
| 2026 | +86.9% | +15.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ATI and XLI good diversifiers for each other?
To a limited degree. At 0.65 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
FAQ
What is the correlation between ATI and XLI?
The ATI/XLI correlation stands at 0.65 on a 3-year window (1 year: 0.66, 5 years: 0.61), computed from weekly returns as of 2026-08-27.
Is XLI a good diversifier for ATI?
To a limited degree. At 0.65 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
What does a correlation of 0.65 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/ati-vs-xli.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/ati-vs-xli/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: ATI correlations · XLI correlations
