Market capitalization of BK increased by 50.06% over the past 1 year. The primary factor behind the change was an increase in P/E Change from 12.79 to 16.45.
The secondary factor is the Margin Expansion, contributed 12.18%to the performance.
Overall, the performance of BK in the past 1 year is driven by P/E Change. Which is more unsustainable.