BCX vs MOBX: Correlation
Measured on weekly returns over the past three years, BlackRock Resources (BCX) and Mobix Labs, Inc. (MOBX) carry a correlation of -0.25, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BCX and MOBX?
Over the past 3 years, BCX and MOBX moved with a correlation of -0.25, which is negative, meaning they tend to move in opposite directions. Lately the two have drifted apart, with the 1-year correlation at -0.43 versus -0.25 over 3 years. Over 5 years the correlation is -0.18, and the annualized covariance of weekly returns is -1699.2 %².
MOBX is close to the least connected end of BCX's tracked universe, ranking #15 of 17. Correlation aside, the last 12 months split them widely, with BCX ahead by 129.5 points (+41.5% versus -88.0%). Note the risk asymmetry: MOBX runs 16.7 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.
BCX vs MOBX: side by side
| BCX (BlackRock Resources) | MOBX (Mobix Labs, Inc.) | |
|---|---|---|
| 1-year return | +41.5% | -88.0% |
| 5-year return | +98.3% | -98.8% |
| Volatility (ann.) | 20.0% | 333.1% |
| Beta vs S&P 500 | 0.56 | -0.62 |
| Max drawdown (3Y) | -18.8% | -99.1% |
| Market cap | $1.0B | – |
| P/E (trailing) | 4.7 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BCX | MOBX |
|---|---|---|
| 2022 | +12.8% | +3.8% |
| 2023 | -4.8% | -60.6% |
| 2024 | +3.2% | -57.7% |
| 2025 | +40.4% | -84.3% |
| 2026 | +24.5% | -57.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BCX and MOBX good diversifiers for each other?
Yes: at -0.25, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between BCX and MOBX?
As of 2026-08-27, the correlation of weekly returns between BCX and MOBX is -0.25 over 3 years, -0.43 over 1 year and -0.18 over 5 years.
Is MOBX a good diversifier for BCX?
Yes: at -0.25, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.25 mean?
On the −1 to +1 scale, -0.25 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/bcx-vs-mobx.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/bcx-vs-mobx/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: BCX correlations · MOBX correlations
