ALMU vs TGEN: Correlation
Measured on weekly returns over the past three years, Aeluma, Inc. (ALMU) and Tecogen Inc. (TGEN) carry a correlation of 0.34, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ALMU and TGEN?
Over the past 3 years, ALMU and TGEN moved with a correlation of 0.34, which is moderate. The past 12 months show a tighter link (0.60) than the 3-year average (0.34). Over 5 years the correlation is n/a, and the annualized covariance of weekly returns is 3838.7 %².
Among the 20 assets we track against ALMU, TGEN ranks #5 by 3-year correlation. The last year tells two different stories: ALMU led by 27.4 percentage points, -32.4% for ALMU against -59.8% for TGEN.
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 TGEN: side by side
| ALMU (Aeluma, Inc.) | TGEN (Tecogen Inc.) | |
|---|---|---|
| 1-year return | -32.4% | -59.8% |
| 5-year return | n/a | +76.1% |
| Volatility (ann.) | 106.9% | 106.2% |
| Beta vs S&P 500 | 1.15 | 1.92 |
| Max drawdown (3Y) | -56.7% | -83.4% |
| Market cap | $0.3B | $0.1B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ALMU | TGEN |
|---|---|---|
| 2022 | – | +4.2% |
| 2023 | – | -35.2% |
| 2024 | +163.8% | +80.9% |
| 2025 | +124.4% | +237.2% |
| 2026 | -18.9% | -35.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ALMU and TGEN good diversifiers for each other?
Reasonably. At 0.34, ALMU and TGEN keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between ALMU and TGEN?
As of 2026-08-27, the correlation of weekly returns between ALMU and TGEN is 0.34 over 3 years, 0.60 over 1 year and n/a over 5 years.
Is TGEN a good diversifier for ALMU?
Reasonably. At 0.34, ALMU and TGEN keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.34 mean?
A reading of 0.34 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
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Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/almu-vs-tgen/)
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Related comparisons
Hubs: ALMU correlations · TGEN correlations
