LYB vs NB: Correlation
How closely do LyondellBasell (LYB) and NioCorp Developments Ltd. (NB) trade together? Their weekly returns over three years give a correlation of -0.17, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are LYB and NB?
Over the past 3 years, LYB and NB moved with a correlation of -0.17, which is negative, meaning they tend to move in opposite directions. Recent behaviour matches the longer record: -0.17 over 1 year against -0.17 over 3. Over 5 years the correlation is n/a, and the annualized covariance of weekly returns is -518.2 %².
Within LYB's tracked universe of 36 assets, NB comes in at #27 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months LYB outperformed by 24.7 percentage points (+19.1% for LYB against -5.6% for NB). Risk is not evenly split, since NB carries 2.7 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.
LYB vs NB: side by side
| LYB (LyondellBasell) | NB (NioCorp Developments Ltd.) | |
|---|---|---|
| 1-year return | +19.1% | -5.6% |
| 5-year return | -12.8% | n/a |
| Volatility (ann.) | 33.7% | 90.1% |
| Beta vs S&P 500 | 0.42 | 0.33 |
| Max drawdown (3Y) | -55.4% | -74.7% |
| Market cap | $20.4B | $0.6B |
| P/E (trailing) | – | – |
| Dividend yield | 6.58% | 0.00% |
| Sector / category | Materials | US Listed |
Year-by-year returns
| Year | LYB | NB |
|---|---|---|
| 2022 | -1.0% | – |
| 2023 | +20.7% | – |
| 2024 | -17.4% | -51.4% |
| 2025 | -36.0% | +241.9% |
| 2026 | +50.5% | -17.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are LYB and NB good diversifiers for each other?
Yes: at -0.17, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between LYB and NB?
Using weekly returns as of 2026-08-27: -0.17 over 3 years, with -0.17 over the last year and n/a over 5 years.
Is NB a good diversifier for LYB?
Yes: at -0.17, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.17 mean?
On the −1 to +1 scale, -0.17 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/lyb-vs-nb.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/lyb-vs-nb/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: LYB correlations · NB correlations
