CERT vs SLP: Correlation
How closely do Certara, Inc. (CERT) and Simulations Plus, Inc. (SLP) trade together? Their weekly returns over three years give a correlation of 0.61, which is strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CERT and SLP?
On 3 years of weekly data the CERT/SLP correlation comes out at 0.61, strong. The relationship has been stable: the 1-year correlation (0.68) sits close to the 3-year figure. The 5-year figure is 0.57, and annualized covariance runs at 1938.3 %².
In CERT's tracked universe of 13 assets, SLP sits right near the top at #1. The last year tells two different stories: SLP led by 51.6 percentage points, -23.3% for CERT against +28.3% for SLP.
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.
CERT vs SLP: side by side
| CERT (Certara, Inc.) | SLP (Simulations Plus, Inc.) | |
|---|---|---|
| 1-year return | -23.3% | +28.3% |
| 5-year return | -74.4% | -58.0% |
| Volatility (ann.) | 56.7% | 55.9% |
| Beta vs S&P 500 | 1.49 | 1.34 |
| Max drawdown (3Y) | -77.0% | -77.7% |
| Market cap | $1.3B | $0.4B |
| P/E (trailing) | – | 46.0 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | CERT | SLP |
|---|---|---|
| 2022 | -43.5% | -22.3% |
| 2023 | +9.5% | +23.1% |
| 2024 | -39.5% | -37.4% |
| 2025 | -17.3% | -34.6% |
| 2026 | -4.5% | +1.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CERT and SLP good diversifiers for each other?
Somewhat, no more. With 0.61 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between CERT and SLP?
The CERT/SLP correlation stands at 0.61 on a 3-year window (1 year: 0.68, 5 years: 0.57), computed from weekly returns as of 2026-08-27.
Is SLP a good diversifier for CERT?
Somewhat, no more. With 0.61 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.61 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/cert-vs-slp.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/cert-vs-slp/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: CERT correlations · SLP correlations
