KN vs PRLB: Correlation
How closely do Knowles Corporation (KN) and Proto Labs, Inc. (PRLB) trade together? Their weekly returns over three years give a correlation of 0.58, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are KN and PRLB?
Over the past 3 years, KN and PRLB moved with a correlation of 0.58, which is moderate. The past 12 months show a tighter link (0.68) than the 3-year average (0.58). Over 5 years the correlation is 0.44, and the annualized covariance of weekly returns is 1065.5 %².
Among the 30 assets we track against KN, PRLB ranks #15 by 3-year correlation. Neither side won the trailing year by much: +61.9% against +57.6%.
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.
KN vs PRLB: side by side
| KN (Knowles Corporation) | PRLB (Proto Labs, Inc.) | |
|---|---|---|
| 1-year return | +61.9% | +57.6% |
| 5-year return | +73.8% | +10.1% |
| Volatility (ann.) | 36.5% | 50.3% |
| Beta vs S&P 500 | 1.65 | 1.52 |
| Max drawdown (3Y) | -38.0% | -33.6% |
| Market cap | $3.0B | $1.9B |
| P/E (trailing) | 41.1 | 62.6 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | KN | PRLB |
|---|---|---|
| 2022 | -29.7% | -50.3% |
| 2023 | +9.1% | +52.6% |
| 2024 | +11.3% | +0.3% |
| 2025 | +7.5% | +29.4% |
| 2026 | +63.1% | +58.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are KN and PRLB good diversifiers for each other?
Somewhat, no more. With 0.58 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between KN and PRLB?
The KN/PRLB correlation stands at 0.58 on a 3-year window (1 year: 0.68, 5 years: 0.44), computed from weekly returns as of 2026-08-27.
Is PRLB a good diversifier for KN?
Somewhat, no more. With 0.58 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.58 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.
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Related comparisons
Hubs: KN correlations · PRLB correlations
