Market capitalization of UMC increased by 21.26% over the past 1 year. The primary factor behind the change was an increase in P/E Change from 70.53 to 77.62.
The secondary factor is the Margin Expansion, contributed 5.82%to the performance.
Overall, the performance of UMC in the past 1 year is driven by P/E Change. Which is more unsustainable.