Market capitalization of WMB increased by 17.63% over the past 1 year. The primary factor behind the change was an increase in P/E Change from 26.43 to 32.83.
The secondary factor is the Revenue Growth, contributed 8.27%to the performance.
Overall, the performance of WMB in the past 1 year is driven by P/E Change. Which is more unsustainable.