KELYA vs NSP: Correlation
Kelly Services, Inc. (KELYA) and Insperity, Inc. (NSP) show a moderate relationship: their 3-year correlation of weekly returns is 0.56.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are KELYA and NSP?
Over the past 3 years, KELYA and NSP moved with a correlation of 0.56, which is moderate. Recent behaviour matches the longer record: 0.58 over 1 year against 0.56 over 3. Over 5 years the correlation is 0.41, and the annualized covariance of weekly returns is 1132.5 %².
Few assets follow KELYA as closely as NSP, which ranks #2 of 20 tracked partners. The last year tells two different stories: KELYA led by 22.9 percentage points, +24.2% for KELYA against +1.3% for NSP.
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.
KELYA vs NSP: side by side
| KELYA (Kelly Services, Inc.) | NSP (Insperity, Inc.) | |
|---|---|---|
| 1-year return | +24.2% | +1.3% |
| 5-year return | -5.4% | -44.3% |
| Volatility (ann.) | 37.3% | 54.1% |
| Beta vs S&P 500 | 0.73 | 0.97 |
| Max drawdown (3Y) | -66.5% | -81.5% |
| Market cap | $0.6B | $2.0B |
| P/E (trailing) | – | – |
| Dividend yield | 1.77% | 4.62% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | KELYA | NSP |
|---|---|---|
| 2022 | +2.3% | -1.9% |
| 2023 | +30.0% | +5.2% |
| 2024 | -34.5% | -32.1% |
| 2025 | -35.2% | -47.8% |
| 2026 | +98.2% | +40.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are KELYA and NSP good diversifiers for each other?
Somewhat, no more. With 0.56 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between KELYA and NSP?
Using weekly returns as of 2026-08-27: 0.56 over 3 years, with 0.58 over the last year and 0.41 over 5 years.
Is NSP a good diversifier for KELYA?
Somewhat, no more. With 0.56 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.56 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/kelya-vs-nsp.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/kelya-vs-nsp/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: KELYA correlations · NSP correlations
