BCX vs MOS: Correlation
How closely do BlackRock Resources (BCX) and Mosaic Company (The) (MOS) trade together? Their weekly returns over three years give a correlation of 0.53, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BCX and MOS?
Over the past 3 years, BCX and MOS moved with a correlation of 0.53, which is moderate. The link has loosened recently: the 1-year correlation (0.42) runs below the 3-year figure (0.53). Over 5 years the correlation is 0.59, and the annualized covariance of weekly returns is 388.6 %².
Within BCX's tracked universe of 17 assets, MOS comes in at #7 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months BCX outperformed by 68.1 percentage points (+41.5% for BCX against -26.6% for MOS). Note the risk asymmetry: MOS runs 1.8 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 MOS: side by side
| BCX (BlackRock Resources) | MOS (Mosaic Company (The)) | |
|---|---|---|
| 1-year return | +41.5% | -26.6% |
| 5-year return | +98.3% | -17.1% |
| Volatility (ann.) | 20.0% | 36.6% |
| Beta vs S&P 500 | 0.56 | 0.78 |
| Max drawdown (3Y) | -18.8% | -45.7% |
| Market cap | $1.0B | $7.6B |
| P/E (trailing) | 4.7 | – |
| Dividend yield | 0.00% | 3.64% |
| Sector / category | US Listed | Materials |
Year-by-year returns
| Year | BCX | MOS |
|---|---|---|
| 2022 | +12.8% | +12.8% |
| 2023 | -4.8% | -16.4% |
| 2024 | +3.2% | -29.1% |
| 2025 | +40.4% | +1.1% |
| 2026 | +24.5% | +0.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BCX and MOS good diversifiers for each other?
To a limited degree. At 0.53 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
FAQ
What is the correlation between BCX and MOS?
As of 2026-08-27, the correlation of weekly returns between BCX and MOS is 0.53 over 3 years, 0.42 over 1 year and 0.59 over 5 years.
Is MOS a good diversifier for BCX?
To a limited degree. At 0.53 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
What does a correlation of 0.53 mean?
On the −1 to +1 scale, 0.53 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-mos.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/bcx-vs-mos/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: BCX correlations · MOS correlations
