BLK vs MACI: Correlation
BlackRock (BLK) and Melar Acquisition Corp. I - Class A (MACI) show a negative relationship: their 3-year correlation of weekly returns is -0.17.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BLK and MACI?
Over the past 3 years, BLK and MACI moved with a correlation of -0.17, which is negative, meaning they tend to move in opposite directions. Recent behaviour matches the longer record: -0.13 over 1 year against -0.17 over 3. Over 5 years the correlation is n/a, and the annualized covariance of weekly returns is -8.9 %².
By 3-year correlation, MACI places #34 of the 42 assets tracked against BLK. Neither side won the trailing year by much: +5.3% against +4.4%. One caveat on sizing: BLK is 11.8 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.
BLK vs MACI: side by side
| BLK (BlackRock) | MACI (Melar Acquisition Corp. I - Class A) | |
|---|---|---|
| 1-year return | +5.3% | +4.4% |
| 5-year return | +38.9% | n/a |
| Volatility (ann.) | 24.7% | 2.1% |
| Beta vs S&P 500 | 1.19 | -0.03 |
| Max drawdown (3Y) | -23.7% | -2.0% |
| Market cap | $189.7B | $0.2B |
| P/E (trailing) | 28.1 | 60.9 |
| Dividend yield | 1.86% | 0.00% |
| Sector / category | Financials | US Listed |
Year-by-year returns
| Year | BLK | MACI |
|---|---|---|
| 2022 | -20.4% | – |
| 2023 | +17.9% | – |
| 2024 | +29.3% | – |
| 2025 | +6.6% | +5.7% |
| 2026 | +10.3% | +3.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BLK and MACI 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 MACI?
As of 2026-08-27, the correlation of weekly returns between BLK and MACI is -0.17 over 3 years, -0.13 over 1 year and n/a over 5 years.
Is MACI 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?
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/blk-vs-maci.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/blk-vs-maci/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: BLK correlations · MACI correlations
