Market capitalization of GBX decreased by 22.81% over the past 1 year. The primary factor behind the change was an increase in P/E Change from 6.13 to 7.32.
The secondary factor is the Margin Expansion, contributed -14.35%to the performance.
Overall, the performance of GBX in the past 1 year is driven by P/E Change. Which is more unsustainable.