AP vs LNTH: Correlation
Measured on weekly returns over the past three years, Ampco-Pittsburgh Corporation (AP) and Lantheus Holdings, Inc. (LNTH) carry a correlation of 0.38, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AP and LNTH?
Over the past 3 years, AP and LNTH moved with a correlation of 0.38, which is moderate. The link has loosened recently: the 1-year correlation (0.26) runs below the 3-year figure (0.38). Over 5 years the correlation is 0.26, and the annualized covariance of weekly returns is 2064.8 %².
By 3-year correlation, LNTH places #7 of the 14 assets tracked against AP. The last year tells two different stories: AP led by 155.8 percentage points, +232.6% for AP against +76.8% for LNTH. Note the risk asymmetry: AP runs 1.6 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.
AP vs LNTH: side by side
| AP (Ampco-Pittsburgh Corporation) | LNTH (Lantheus Holdings, Inc.) | |
|---|---|---|
| 1-year return | +232.6% | +76.8% |
| 5-year return | +90.5% | +286.9% |
| Volatility (ann.) | 94.5% | 57.5% |
| Beta vs S&P 500 | 1.63 | 0.44 |
| Max drawdown (3Y) | -77.6% | -59.5% |
| Market cap | $0.2B | $6.6B |
| P/E (trailing) | – | 24.1 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | AP | LNTH |
|---|---|---|
| 2022 | -49.8% | +76.4% |
| 2023 | +8.8% | +21.7% |
| 2024 | -23.4% | +44.3% |
| 2025 | +155.0% | -25.6% |
| 2026 | +72.2% | +51.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AP and LNTH good diversifiers for each other?
A fair diversifier. At 0.38, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between AP and LNTH?
The AP/LNTH correlation stands at 0.38 on a 3-year window (1 year: 0.26, 5 years: 0.26), computed from weekly returns as of 2026-08-27.
Is LNTH a good diversifier for AP?
A fair diversifier. At 0.38, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.38 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/ap-vs-lnth.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/ap-vs-lnth/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: AP correlations · LNTH correlations
