SLS vs VNDA: Correlation
SELLAS Life Sciences Group, Inc. (SLS) and Vanda Pharmaceuticals Inc. (VNDA) show a moderate relationship: their 3-year correlation of weekly returns is 0.32.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are SLS and VNDA?
Across a 3-year window, the weekly returns of SLS and VNDA correlate at 0.32, moderate. The relationship has been stable: the 1-year correlation (0.40) sits close to the 3-year figure. Stretching to 5 years gives 0.30, with an annualized covariance of 2064.1 %².
By 3-year correlation, VNDA places #5 of the 10 assets tracked against SLS. Their recent paths diverged sharply: over the last 12 months SLS outperformed by 674.5 percentage points (+692.2% for SLS against +17.7% for VNDA). Risk is not evenly split, since SLS carries 1.6 times the volatility of the other side.
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.
SLS vs VNDA: side by side
| SLS (SELLAS Life Sciences Group, Inc.) | VNDA (Vanda Pharmaceuticals Inc.) | |
|---|---|---|
| 1-year return | +692.2% | +17.7% |
| 5-year return | +65.0% | -67.8% |
| Volatility (ann.) | 101.2% | 63.1% |
| Beta vs S&P 500 | 0.79 | 0.55 |
| Max drawdown (3Y) | -72.0% | -48.4% |
| Market cap | $3.1B | $0.3B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | SLS | VNDA |
|---|---|---|
| 2022 | -57.3% | -52.9% |
| 2023 | -55.1% | -42.9% |
| 2024 | -1.9% | +13.5% |
| 2025 | +262.5% | +84.1% |
| 2026 | +303.4% | -38.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are SLS and VNDA good diversifiers for each other?
Reasonably. At 0.32, SLS and VNDA keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between SLS and VNDA?
Using weekly returns as of 2026-08-27: 0.32 over 3 years, with 0.40 over the last year and 0.30 over 5 years.
Is VNDA a good diversifier for SLS?
Reasonably. At 0.32, SLS and VNDA keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.32 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/sls-vs-vnda.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/sls-vs-vnda/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: SLS correlations · VNDA correlations
