Even bank shareholders shop around and compare dea

More than 1.5 million Australians have shares in the Big Four banks but only about 41 per cent of each bank's shareholders are customers of that bank.

Commonwealth Bank shareholders are the most loyal to their bank with 49 per cent also being CBA customers.

40 per cent of Westpac shareholders are customers of the bank. Just over one-third of the shareholders of ANZ and NAB are customers of those banks.

Source: Banking Day