LONDON, Jan 20 (Reuters) - There are signs that innovation
is helping to weaken the market grip of Britain's "Big Four"
banks, but "challenger" lenders have found it slow and expensive
to build up market share, the Financial Conduct Authority said
on Thursday.
High street banking is dominated by HSBC, Barclays, Lloyds
and NatWest.
"There are signs that some of the historic advantages of
large banks may be starting to weaken through innovation and
digitisation and changing consumer behaviour," the FCA said in
an update of its strategic review of retail banking business
models.
(Reporting by Huw Jones; editing by Jason Neely)