ALMU vs BND: Correlation
How closely do Aeluma, Inc. (ALMU) and Vanguard Total Bond Market ETF (BND) trade together? Their weekly returns over three years give a correlation of -0.26, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ALMU and BND?
On 3 years of weekly data the ALMU/BND correlation comes out at -0.26, negative, meaning they tend to move in opposite directions. The past 12 months show a tighter link (-0.04) than the 3-year average (-0.26). The 5-year figure is n/a, and annualized covariance runs at -145.8 %².
Out of 20 assets tracked against ALMU, BND lands near the bottom at #16. Correlation aside, the last 12 months split them widely, with BND ahead by 34.7 points (-32.4% versus +2.3%). One caveat on sizing: ALMU is 20.6 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 BND: side by side
| ALMU (Aeluma, Inc.) | BND (Vanguard Total Bond Market ETF) | |
|---|---|---|
| 1-year return | -32.4% | +2.3% |
| 5-year return | n/a | -1.3% |
| Volatility (ann.) | 106.9% | 5.2% |
| Beta vs S&P 500 | 1.15 | 0.06 |
| Max drawdown (3Y) | -56.7% | -4.7% |
| Market cap | $0.3B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | – |
| Sector / category | US Listed | ETF · Bonds |
Year-by-year returns
| Year | ALMU | BND |
|---|---|---|
| 2022 | – | -13.1% |
| 2023 | – | +5.7% |
| 2024 | +163.8% | +1.4% |
| 2025 | +124.4% | +7.1% |
| 2026 | -18.9% | +0.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ALMU and BND good diversifiers for each other?
By historical standards, yes. A correlation of -0.26 means the two rarely move for the same reasons.
FAQ
What is the correlation between ALMU and BND?
As of 2026-08-27, the correlation of weekly returns between ALMU and BND is -0.26 over 3 years, -0.04 over 1 year and n/a over 5 years.
Is BND a good diversifier for ALMU?
By historical standards, yes. A correlation of -0.26 means the two rarely move for the same reasons.
What does a correlation of -0.26 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-bnd.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/almu-vs-bnd/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: ALMU correlations · BND correlations
