Now that the largest six U.S. banks have reported their fourth-quarter results, it is clear that investors are continuing to celebrate the group’s performance. And although the banks have varying business models,

The bank said profit rose 50% to $14 billion in the fourth quarter as noninterest expenses fell 7% from a year earlier.

With the U.S. economy humming along, JPMorgan Chase (NYSE:JPM) turned in stronger-than-expected Q4 earnings, with net interest income staying flat with Q3 and investment banking and capital markets-related revenue strengthening.

Big bank profits surged in the fourth quarter and Wall Street roared back to life, with net income rising 50% at JPMorgan Chase and more than doubling at Goldman Sachs.

The $4 trillion-asset bank posted its highest-ever annual profit but also said its CEO succession plan is still in the works.