HALO vs LDOS: Correlation
Halozyme Therapeutics, Inc. (HALO) and Leidos (LDOS) show a moderate relationship: their 3-year correlation of weekly returns is 0.45.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are HALO and LDOS?
On 3 years of weekly data the HALO/LDOS correlation comes out at 0.45, moderate. The relationship has been stable: the 1-year correlation (0.40) sits close to the 3-year figure. The 5-year figure is 0.38, and annualized covariance runs at 580.9 %².
LDOS is one of the assets that tracks HALO most closely: it ranks #1 out of the 12 assets we track against HALO. Correlation aside, the last 12 months split them widely, with HALO ahead by 69.0 points (+46.1% 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.
HALO vs LDOS: side by side
| HALO (Halozyme Therapeutics, Inc.) | LDOS (Leidos) | |
|---|---|---|
| 1-year return | +46.1% | -22.9% |
| 5-year return | +154.8% | +52.1% |
| Volatility (ann.) | 41.5% | 31.4% |
| Beta vs S&P 500 | 0.54 | 0.87 |
| Max drawdown (3Y) | -33.9% | -49.5% |
| Market cap | $12.1B | $17.6B |
| P/E (trailing) | 31.4 | 12.8 |
| Dividend yield | 0.00% | 1.23% |
| Sector / category | US Listed | Industrials |
Year-by-year returns
| Year | HALO | LDOS |
|---|---|---|
| 2022 | +41.5% | +20.0% |
| 2023 | -35.0% | +4.5% |
| 2024 | +29.4% | +34.5% |
| 2025 | +40.8% | +26.5% |
| 2026 | +58.9% | -22.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are HALO and LDOS good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.45 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between HALO and LDOS?
The HALO/LDOS correlation stands at 0.45 on a 3-year window (1 year: 0.40, 5 years: 0.38), computed from weekly returns as of 2026-08-27.
Is LDOS a good diversifier for HALO?
Yes, to a useful degree: a correlation of 0.45 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.45 mean?
On the −1 to +1 scale, 0.45 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/halo-vs-ldos.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/halo-vs-ldos/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: HALO correlations · LDOS correlations
