CET vs MCO: Correlation
Measured on weekly returns over the past three years, Central Securities Corporation (CET) and Moody's Corporation (MCO) carry a correlation of 0.61, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CET and MCO?
Over the past 3 years, CET and MCO moved with a correlation of 0.61, which is strong. The past 12 months show a weaker link (0.38) than the 3-year average (0.61). Over 5 years the correlation is 0.64, and the annualized covariance of weekly returns is 201.5 %².
By 3-year correlation, MCO places #10 of the 38 assets tracked against CET. Correlation aside, the last 12 months split them widely, with CET ahead by 15.0 points (+15.7% versus +0.7%). Note the risk asymmetry: MCO runs 2.0 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.
CET vs MCO: side by side
| CET (Central Securities Corporation) | MCO (Moody's Corporation) | |
|---|---|---|
| 1-year return | +15.7% | +0.7% |
| 5-year return | +73.3% | +39.4% |
| Volatility (ann.) | 12.8% | 25.8% |
| Beta vs S&P 500 | 0.78 | 1.08 |
| Max drawdown (3Y) | -15.4% | -24.7% |
| Market cap | – | $88.2B |
| P/E (trailing) | 7.3 | 32.7 |
| Dividend yield | 5.03% | 0.77% |
| Sector / category | US Listed | Financials |
Year-by-year returns
| Year | CET | MCO |
|---|---|---|
| 2022 | -19.7% | -28.0% |
| 2023 | +19.2% | +41.5% |
| 2024 | +26.8% | +22.2% |
| 2025 | +17.2% | +8.7% |
| 2026 | +8.3% | +0.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CET and MCO good diversifiers for each other?
Somewhat, no more. With 0.61 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between CET and MCO?
The CET/MCO correlation stands at 0.61 on a 3-year window (1 year: 0.38, 5 years: 0.64), computed from weekly returns as of 2026-08-27.
Is MCO a good diversifier for CET?
Somewhat, no more. With 0.61 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.61 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/cet-vs-mco.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/cet-vs-mco/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: CET correlations · MCO correlations
