CACI vs LDOS: Correlation
How closely do CACI International, Inc. (CACI) and Leidos (LDOS) trade together? Their weekly returns over three years give a correlation of 0.78, which is strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CACI and LDOS?
On 3 years of weekly data the CACI/LDOS correlation comes out at 0.78, strong. Recent behaviour matches the longer record: 0.82 over 1 year against 0.78 over 3. The 5-year figure is 0.77, and annualized covariance runs at 862.5 %².
In CACI's tracked universe of 16 assets, LDOS sits right near the top at #1. Correlation aside, the last 12 months split them widely, with CACI ahead by 53.0 points (+30.1% versus -22.9%).
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.
CACI vs LDOS: side by side
| CACI (CACI International, Inc.) | LDOS (Leidos) | |
|---|---|---|
| 1-year return | +30.1% | -22.9% |
| 5-year return | +146.9% | +52.1% |
| Volatility (ann.) | 35.3% | 31.4% |
| Beta vs S&P 500 | 0.56 | 0.87 |
| Max drawdown (3Y) | -42.9% | -49.5% |
| Market cap | $14.0B | $17.6B |
| P/E (trailing) | 25.8 | 12.8 |
| Dividend yield | 0.00% | 1.23% |
| Sector / category | US Listed | Industrials |
Year-by-year returns
| Year | CACI | LDOS |
|---|---|---|
| 2022 | +11.7% | +20.0% |
| 2023 | +7.7% | +4.5% |
| 2024 | +24.8% | +34.5% |
| 2025 | +31.9% | +26.5% |
| 2026 | +19.0% | -22.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CACI and LDOS good diversifiers for each other?
To a limited degree. At 0.78 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 CACI and LDOS?
As of 2026-08-27, the correlation of weekly returns between CACI and LDOS is 0.78 over 3 years, 0.82 over 1 year and 0.77 over 5 years.
Is LDOS a good diversifier for CACI?
To a limited degree. At 0.78 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 0.78 mean?
A reading of 0.78 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/caci-vs-ldos.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/caci-vs-ldos/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: CACI correlations · LDOS correlations
