AMUB vs WMB: Correlation
How closely do ETRACS Alerian MLP Index ETN Series B due July 18, 2042 (AMUB) and Williams Companies (WMB) trade together? Their weekly returns over three years give a correlation of 0.58, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AMUB and WMB?
Over the past 3 years, AMUB and WMB moved with a correlation of 0.58, which is moderate. Little has changed lately, as the 1-year reading of 0.51 lands near the 3-year figure. Over 5 years the correlation is 0.71, and the annualized covariance of weekly returns is 227.9 %².
Among the 20 assets we track against AMUB, WMB ranks #12 by 3-year correlation. Twelve-month performance is nearly a tie, at +30.9% for AMUB and +33.1% for WMB.
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.
AMUB vs WMB: side by side
| AMUB (ETRACS Alerian MLP Index ETN Series B due July 18, 2042) | WMB (Williams Companies) | |
|---|---|---|
| 1-year return | +30.9% | +33.1% |
| 5-year return | +191.0% | +279.9% |
| Volatility (ann.) | 16.5% | 24.0% |
| Beta vs S&P 500 | 0.31 | 0.34 |
| Max drawdown (3Y) | -17.0% | -12.4% |
| Market cap | – | $90.7B |
| P/E (trailing) | – | 29.7 |
| Dividend yield | – | 2.76% |
| Sector / category | US Listed | Energy |
Year-by-year returns
| Year | AMUB | WMB |
|---|---|---|
| 2022 | +29.9% | +32.8% |
| 2023 | +25.4% | +11.9% |
| 2024 | +23.0% | +62.3% |
| 2025 | +8.7% | +14.9% |
| 2026 | +29.6% | +25.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AMUB and WMB good diversifiers for each other?
Somewhat, no more. With 0.58 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between AMUB and WMB?
The AMUB/WMB correlation stands at 0.58 on a 3-year window (1 year: 0.51, 5 years: 0.71), computed from weekly returns as of 2026-08-27.
Is WMB a good diversifier for AMUB?
Somewhat, no more. With 0.58 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.58 mean?
A reading of 0.58 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
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Related comparisons
Hubs: AMUB correlations · WMB correlations
