CET vs LDOS: Correlation
Central Securities Corporation (CET) and Leidos (LDOS) show a moderate relationship: their 3-year correlation of weekly returns is 0.48.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CET and LDOS?
Over the past 3 years, CET and LDOS moved with a correlation of 0.48, which is moderate. The relationship has been stable: the 1-year correlation (0.55) sits close to the 3-year figure. Over 5 years the correlation is 0.43, and the annualized covariance of weekly returns is 193.0 %².
Within CET's tracked universe of 38 assets, LDOS comes in at #28 by 3-year correlation. The last year tells two different stories: CET led by 38.6 percentage points, +15.7% for CET against -22.9% for LDOS. Risk is not evenly split, since LDOS carries 2.5 times the volatility of the other side.
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 LDOS: side by side
| CET (Central Securities Corporation) | LDOS (Leidos) | |
|---|---|---|
| 1-year return | +15.7% | -22.9% |
| 5-year return | +73.3% | +52.1% |
| Volatility (ann.) | 12.8% | 31.4% |
| Beta vs S&P 500 | 0.78 | 0.87 |
| Max drawdown (3Y) | -15.4% | -49.5% |
| Market cap | – | $17.6B |
| P/E (trailing) | 7.3 | 12.8 |
| Dividend yield | 5.03% | 1.23% |
| Sector / category | US Listed | Industrials |
Year-by-year returns
| Year | CET | LDOS |
|---|---|---|
| 2022 | -19.7% | +20.0% |
| 2023 | +19.2% | +4.5% |
| 2024 | +26.8% | +34.5% |
| 2025 | +17.2% | +26.5% |
| 2026 | +8.3% | -22.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CET and LDOS good diversifiers for each other?
Reasonably. At 0.48, CET and LDOS keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between CET and LDOS?
Using weekly returns as of 2026-08-27: 0.48 over 3 years, with 0.55 over the last year and 0.43 over 5 years.
Is LDOS a good diversifier for CET?
Reasonably. At 0.48, CET and LDOS keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.48 mean?
On the −1 to +1 scale, 0.48 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/cet-vs-ldos.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/cet-vs-ldos/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: CET correlations · LDOS correlations
