BON vs STLN: Correlation
Bon Natural Life Limited - Class A (BON) and Starling Oncology, Inc. (STLN) show a negative relationship: their 3-year correlation of weekly returns is -0.21.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BON and STLN?
Across a 3-year window, the weekly returns of BON and STLN correlate at -0.21, negative, meaning they tend to move in opposite directions. The link has tightened recently: the 1-year correlation (0.07) runs above the 3-year figure (-0.21). Stretching to 5 years gives -0.10, with an annualized covariance of -2347.0 %².
Among the 12 assets we track against BON, STLN sits near the bottom by co-movement, at rank #8. Their recent paths diverged sharply: over the last 12 months STLN outperformed by 101.2 percentage points (-18.0% for BON against +83.2% for STLN).
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.
BON vs STLN: side by side
| BON (Bon Natural Life Limited - Class A) | STLN (Starling Oncology, Inc.) | |
|---|---|---|
| 1-year return | -18.0% | +83.2% |
| 5-year return | -100.0% | -36.1% |
| Volatility (ann.) | 94.3% | 116.5% |
| Beta vs S&P 500 | 1.69 | 1.39 |
| Max drawdown (3Y) | -99.4% | -94.8% |
| Market cap | – | $0.6B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BON | STLN |
|---|---|---|
| 2022 | -76.2% | -83.1% |
| 2023 | -48.9% | +23.6% |
| 2024 | -67.2% | -84.9% |
| 2025 | -96.4% | +1052.1% |
| 2026 | -28.3% | +78.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BON and STLN good diversifiers for each other?
Yes: at -0.21, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between BON and STLN?
The BON/STLN correlation stands at -0.21 on a 3-year window (1 year: 0.07, 5 years: -0.10), computed from weekly returns as of 2026-08-27.
Is STLN a good diversifier for BON?
Yes: at -0.21, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.21 mean?
On the −1 to +1 scale, -0.21 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/bon-vs-stln.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/bon-vs-stln/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: BON correlations · STLN correlations
