The KBW Bank Index is an index of 24 bank stocks, created by KBW investment bank (Keefe, Bruyette, and Woods). Anyone’s who’s a big player in the banking space in the U.S. is in the KBW Bank Index...all the heavy-hitters.
Since the KBW Index includes all the biggest bank stocks, it’s a great benchmark indicator for the finance sector. There’s even an ETF version of the KBW index if you want to invest in a basket of stocks tracking the KBW Bank Index.