ALMU vs CWT: Correlation
Aeluma, Inc. (ALMU) and California Water Service Group (CWT) show a negative relationship: their 3-year correlation of weekly returns is -0.28.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ALMU and CWT?
Over the past 3 years, ALMU and CWT moved with a correlation of -0.28, which is negative, meaning they tend to move in opposite directions. Recent behaviour matches the longer record: -0.31 over 1 year against -0.28 over 3. Over 5 years the correlation is n/a, and the annualized covariance of weekly returns is -669.3 %².
CWT is close to the least connected end of ALMU's tracked universe, ranking #19 of 20. Their recent paths diverged sharply: over the last 12 months CWT outperformed by 41.7 percentage points (-32.4% for ALMU against +9.3% for CWT). One caveat on sizing: ALMU is 4.8 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.
ALMU vs CWT: side by side
| ALMU (Aeluma, Inc.) | CWT (California Water Service Group) | |
|---|---|---|
| 1-year return | -32.4% | +9.3% |
| 5-year return | n/a | -12.2% |
| Volatility (ann.) | 106.9% | 22.3% |
| Beta vs S&P 500 | 1.15 | 0.10 |
| Max drawdown (3Y) | -56.7% | -24.1% |
| Market cap | $0.3B | $3.1B |
| P/E (trailing) | – | 22.6 |
| Dividend yield | 0.00% | 2.53% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ALMU | CWT |
|---|---|---|
| 2022 | – | -14.1% |
| 2023 | – | -12.8% |
| 2024 | +163.8% | -10.6% |
| 2025 | +124.4% | -1.8% |
| 2026 | -18.9% | +18.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ALMU and CWT good diversifiers for each other?
Yes: at -0.28, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between ALMU and CWT?
The ALMU/CWT correlation stands at -0.28 on a 3-year window (1 year: -0.31, 5 years: n/a), computed from weekly returns as of 2026-08-27.
Is CWT a good diversifier for ALMU?
Yes: at -0.28, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.28 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/almu-vs-cwt.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/almu-vs-cwt/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: ALMU correlations · CWT correlations
