While some banks might still be able to stretch to a new high into 2019 MANY are starting to look VERY toppy.
Not only is this something to be concerned about viz portfolio positioning, but ALSO perhaps WHERE you deposition your hard earned $$$.
The StockWaves database has analysis of dozens of bank stocks. See you your institution of choice stacks up.
There are banks out there (mostly family owned) who go to great lengths to safeguard customer deposits... they may not be as convenient as the big ones with 100s of branches... but I for one do not want to rely on FDIC.