AGG vs ALMU: Correlation
Measured on weekly returns over the past three years, iShares Core US Aggregate Bond ETF (AGG) and Aeluma, Inc. (ALMU) carry a correlation of -0.27, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AGG and ALMU?
Over the past 3 years, AGG and ALMU moved with a correlation of -0.27, which is negative, meaning they tend to move in opposite directions. Lately the two have moved closer together, with the 1-year correlation at -0.05 versus -0.27 over 3 years. Over 5 years the correlation is n/a, and the annualized covariance of weekly returns is -151.1 %².
By 3-year correlation, ALMU places #29 of the 34 assets tracked against AGG. Correlation aside, the last 12 months split them widely, with AGG ahead by 34.7 points (+2.3% versus -32.4%). Note the risk asymmetry: ALMU runs 20.2 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.
AGG vs ALMU: side by side
| AGG (iShares Core US Aggregate Bond ETF) | ALMU (Aeluma, Inc.) | |
|---|---|---|
| 1-year return | +2.3% | -32.4% |
| 5-year return | -1.1% | n/a |
| Volatility (ann.) | 5.3% | 106.9% |
| Beta vs S&P 500 | 0.07 | 1.15 |
| Max drawdown (3Y) | -4.8% | -56.7% |
| Market cap | – | $0.3B |
| P/E (trailing) | – | – |
| Dividend yield | 4.05% | 0.00% |
| Expense ratio | 0.03% | – |
| Assets under management | $137.1B | – |
| Sector / category | ETF · Bonds | US Listed |
AGG, iShares's Intermediate Core Bond fund, carries $137.1B under management, a 0.03% expense ratio, a 4.05% trailing dividend yield.
Year-by-year returns
| Year | AGG | ALMU |
|---|---|---|
| 2022 | -13.0% | – |
| 2023 | +5.7% | – |
| 2024 | +1.3% | +163.8% |
| 2025 | +7.2% | +124.4% |
| 2026 | +0.3% | -18.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AGG and ALMU good diversifiers for each other?
Yes: at -0.27, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between AGG and ALMU?
The AGG/ALMU correlation stands at -0.27 on a 3-year window (1 year: -0.05, 5 years: n/a), computed from weekly returns as of 2026-08-27.
Is ALMU a good diversifier for AGG?
Yes: at -0.27, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.27 mean?
A reading of -0.27 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
$ curl https://www.pairbook.io/api/v1/pairs/agg-vs-almu.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/agg-vs-almu/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: AGG correlations · ALMU correlations
