BLK vs MXC: Correlation
How closely do BlackRock (BLK) and Mexco Energy Corporation (MXC) trade together? Their weekly returns over three years give a correlation of -0.17, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BLK and MXC?
Across a 3-year window, the weekly returns of BLK and MXC correlate at -0.17, negative, meaning they tend to move in opposite directions. Little has changed lately, as the 1-year reading of -0.18 lands near the 3-year figure. Stretching to 5 years gives -0.09, with an annualized covariance of -253.4 %².
Within BLK's tracked universe of 42 assets, MXC comes in at #35 by 3-year correlation. The last year tells two different stories: MXC led by 16.3 percentage points, +5.3% for BLK against +21.6% for MXC. Note the risk asymmetry: MXC runs 2.5 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.
BLK vs MXC: side by side
| BLK (BlackRock) | MXC (Mexco Energy Corporation) | |
|---|---|---|
| 1-year return | +5.3% | +21.6% |
| 5-year return | +38.9% | +7.2% |
| Volatility (ann.) | 24.7% | 62.1% |
| Beta vs S&P 500 | 1.19 | -0.31 |
| Max drawdown (3Y) | -23.7% | -60.6% |
| Market cap | $189.7B | – |
| P/E (trailing) | 28.1 | 13.0 |
| Dividend yield | 1.86% | 1.02% |
| Sector / category | Financials | US Listed |
Year-by-year returns
| Year | BLK | MXC |
|---|---|---|
| 2022 | -20.4% | +33.0% |
| 2023 | +17.9% | -26.2% |
| 2024 | +29.3% | +24.6% |
| 2025 | +6.6% | -10.8% |
| 2026 | +10.3% | -0.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BLK and MXC good diversifiers for each other?
By historical standards, yes. A correlation of -0.17 means the two rarely move for the same reasons.
FAQ
What is the correlation between BLK and MXC?
The BLK/MXC correlation stands at -0.17 on a 3-year window (1 year: -0.18, 5 years: -0.09), computed from weekly returns as of 2026-08-27.
Is MXC a good diversifier for BLK?
By historical standards, yes. A correlation of -0.17 means the two rarely move for the same reasons.
What does a correlation of -0.17 mean?
On the −1 to +1 scale, -0.17 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/blk-vs-mxc.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/blk-vs-mxc/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: BLK correlations · MXC correlations
