Bank Branch locations reports bank locations and deposit amounts. Deposit amounts are updated by the FDIC once per year. Those updates are reflected in the Q4 release. The Q2 update is different from the Q4 update because it presents any new banks, bank mergers or acquisitions since the Q4 file was released. Thus the Q4 and Q2 deposit amounts will look almost the same except for new banks, and possibly some merged or acquired banks.