As we have written before, the size and performance correlation is overrated in banking. In good times, asset size does have an affect efficiency and hence earnings, but in bad times, size negatively impacts earnings. If you take the business cycle into account, over a 20+ year period, there is little correlation between size and banking. As a rule of thumb when a bank grows risk increases. Few bankers understand how to grow assets at decreasing or steady marginal credit and operational risk.