ALMS vs XLC: Correlation
How closely do Alumis Inc. (ALMS) and Communication Services Select Sector SPDR Fund (XLC) trade together? Their weekly returns over three years give a correlation of -0.15, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ALMS and XLC?
Over the past 3 years, ALMS and XLC moved with a correlation of -0.15, which is negative, meaning they tend to move in opposite directions. The link has tightened recently: the 1-year correlation (0.07) runs above the 3-year figure (-0.15). Over 5 years the correlation is n/a, and the annualized covariance of weekly returns is -329.2 %².
Among the 92 assets we track against ALMS, XLC ranks #18 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months ALMS outperformed by 370.2 percentage points (+371.7% for ALMS against +1.5% for XLC). Note the risk asymmetry: ALMS runs 8.1 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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.
ALMS vs XLC: side by side
| ALMS (Alumis Inc.) | XLC (Communication Services Select Sector SPDR Fund) | |
|---|---|---|
| 1-year return | +371.7% | +1.5% |
| 5-year return | n/a | +37.5% |
| Volatility (ann.) | 130.0% | 16.0% |
| Beta vs S&P 500 | -1.50 | 0.90 |
| Max drawdown (3Y) | -78.9% | -18.0% |
| Market cap | $3.0B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 1.32% |
| Expense ratio | – | 0.08% |
| Assets under management | – | $21.7B |
| Sector / category | US Listed | Sector ETF |
On the fund side, XLC sits in the Communications category at State Street Investment Management, with $21.7B under management, 24 holdings, a 0.08% expense ratio, a 1.32% trailing dividend yield.
Year-by-year returns
| Year | ALMS | XLC |
|---|---|---|
| 2022 | – | -37.6% |
| 2023 | – | +52.8% |
| 2024 | – | +34.7% |
| 2025 | +24.2% | +23.1% |
| 2026 | +137.8% | -4.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ALMS and XLC good diversifiers for each other?
Yes. With a correlation of -0.15, ALMS and XLC have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between ALMS and XLC?
The ALMS/XLC correlation stands at -0.15 on a 3-year window (1 year: 0.07, 5 years: n/a), computed from weekly returns as of 2026-08-27.
Is XLC a good diversifier for ALMS?
Yes. With a correlation of -0.15, ALMS and XLC have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.15 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/alms-vs-xlc.json
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[](https://www.pairbook.io/pair/alms-vs-xlc/)
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Related comparisons
Hubs: ALMS correlations · XLC correlations
