Market capitalization of HCA increased by 56.52% over the past 1 year. The primary factor behind the change was an increase in P/E Change from 14.03 to 18.19.
The secondary factor is the Margin Expansion, contributed 17.24%to the performance.
Overall, the performance of HCA in the past 1 year is driven by P/E Change. Which is more unsustainable.