LDOS vs PSN: Correlation
How closely do Leidos (LDOS) and Parsons Corporation (PSN) trade together? Their weekly returns over three years give a correlation of 0.52, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are LDOS and PSN?
Across a 3-year window, the weekly returns of LDOS and PSN correlate at 0.52, moderate. The past 12 months show a weaker link (0.42) than the 3-year average (0.52). Stretching to 5 years gives 0.53, with an annualized covariance of 648.5 %².
By 3-year correlation, PSN places #10 of the 36 assets tracked against LDOS. The last year tells two different stories: LDOS led by 15.8 percentage points, -22.9% for LDOS against -38.7% for PSN.
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.
LDOS vs PSN: side by side
| LDOS (Leidos) | PSN (Parsons Corporation) | |
|---|---|---|
| 1-year return | -22.9% | -38.7% |
| 5-year return | +52.1% | +38.4% |
| Volatility (ann.) | 31.4% | 39.4% |
| Beta vs S&P 500 | 0.87 | 0.82 |
| Max drawdown (3Y) | -49.5% | -64.4% |
| Market cap | $17.6B | $5.3B |
| P/E (trailing) | 12.8 | 34.0 |
| Dividend yield | 1.23% | 0.00% |
| Sector / category | Industrials | US Listed |
Year-by-year returns
| Year | LDOS | PSN |
|---|---|---|
| 2022 | +20.0% | +37.4% |
| 2023 | +4.5% | +35.6% |
| 2024 | +34.5% | +47.1% |
| 2025 | +26.5% | -33.0% |
| 2026 | -22.0% | -20.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are LDOS and PSN good diversifiers for each other?
Only partially. A correlation of 0.52 means LDOS and PSN share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
FAQ
What is the correlation between LDOS and PSN?
The LDOS/PSN correlation stands at 0.52 on a 3-year window (1 year: 0.42, 5 years: 0.53), computed from weekly returns as of 2026-08-27.
Is PSN a good diversifier for LDOS?
Only partially. A correlation of 0.52 means LDOS and PSN share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.52 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/ldos-vs-psn.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/ldos-vs-psn/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: LDOS correlations · PSN correlations
