Market capitalization of INSW increased by 51.84% over the past 1 year. The primary factor behind the change was an increase in P/E Change from 6.67 to 11.76.
The secondary factor is the Margin Expansion, contributed -11.79%to the performance.
Overall, the performance of INSW in the past 1 year is driven by P/E Change. Which is more unsustainable.