RGNX vs SLP: Correlation
REGENXBIO Inc. (RGNX) and Simulations Plus, Inc. (SLP) show a moderate relationship: their 3-year correlation of weekly returns is 0.41.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are RGNX and SLP?
Across a 3-year window, the weekly returns of RGNX and SLP correlate at 0.41, moderate. The link has tightened recently: the 1-year correlation (0.57) runs above the 3-year figure (0.41). Stretching to 5 years gives 0.41, with an annualized covariance of 1937.1 %².
By 3-year correlation, SLP places #8 of the 14 assets tracked against RGNX. Correlation aside, the last 12 months split them widely, with SLP ahead by 22.1 points (+6.2% versus +28.3%). One caveat on sizing: RGNX is 1.5 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
RGNX vs SLP: side by side
| RGNX (REGENXBIO Inc.) | SLP (Simulations Plus, Inc.) | |
|---|---|---|
| 1-year return | +6.2% | +28.3% |
| 5-year return | -70.5% | -58.0% |
| Volatility (ann.) | 84.1% | 55.9% |
| Beta vs S&P 500 | 2.28 | 1.34 |
| Max drawdown (3Y) | -78.4% | -77.7% |
| Market cap | $0.6B | $0.4B |
| P/E (trailing) | – | 46.0 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | RGNX | SLP |
|---|---|---|
| 2022 | -30.6% | -22.3% |
| 2023 | -20.9% | +23.1% |
| 2024 | -56.9% | -37.4% |
| 2025 | +86.3% | -34.6% |
| 2026 | -34.9% | +1.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are RGNX and SLP good diversifiers for each other?
A fair diversifier. At 0.41, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between RGNX and SLP?
Using weekly returns as of 2026-08-27: 0.41 over 3 years, with 0.57 over the last year and 0.41 over 5 years.
Is SLP a good diversifier for RGNX?
A fair diversifier. At 0.41, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.41 mean?
On the −1 to +1 scale, 0.41 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/rgnx-vs-slp.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/rgnx-vs-slp/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: RGNX correlations · SLP correlations
