ATMP vs WMB: Correlation
Measured on weekly returns over the past three years, iPath Select MLP ETN (ATMP) and Williams Companies (WMB) carry a correlation of 0.75, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ATMP and WMB?
On 3 years of weekly data the ATMP/WMB correlation comes out at 0.75, strong. Little has changed lately, as the 1-year reading of 0.70 lands near the 3-year figure. The 5-year figure is 0.80, and annualized covariance runs at 304.0 %².
Within ATMP's tracked universe of 37 assets, WMB comes in at #14 by 3-year correlation. Their 12-month results are close: +34.4% for ATMP against +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.
ATMP vs WMB: side by side
| ATMP (iPath Select MLP ETN) | WMB (Williams Companies) | |
|---|---|---|
| 1-year return | +34.4% | +33.1% |
| 5-year return | +216.1% | +279.9% |
| Volatility (ann.) | 17.0% | 24.0% |
| Beta vs S&P 500 | 0.28 | 0.34 |
| Max drawdown (3Y) | -15.6% | -12.4% |
| Market cap | – | $90.7B |
| P/E (trailing) | – | 29.7 |
| Dividend yield | 0.00% | 2.76% |
| Sector / category | US Listed | Energy |
Year-by-year returns
| Year | ATMP | WMB |
|---|---|---|
| 2022 | +27.5% | +32.8% |
| 2023 | +21.6% | +11.9% |
| 2024 | +38.7% | +62.3% |
| 2025 | +7.0% | +14.9% |
| 2026 | +32.0% | +25.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ATMP and WMB good diversifiers for each other?
Somewhat, no more. With 0.75 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between ATMP and WMB?
The ATMP/WMB correlation stands at 0.75 on a 3-year window (1 year: 0.70, 5 years: 0.80), computed from weekly returns as of 2026-08-27.
Is WMB a good diversifier for ATMP?
Somewhat, no more. With 0.75 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.75 mean?
On the −1 to +1 scale, 0.75 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.
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Related comparisons
Hubs: ATMP correlations · WMB correlations
