These views are based partly on specific steps that they have taken to adjust portfolios and partly on judgments about the effects that rising interest rates would have in easing pressure on interest margins.
That is, many banks seem to believe that as rates rise - presumably along with greater economic growth - they can increase lending rates more than they will need to increase rates paid on deposits. Certainly, there are always outliers, and some banks would undoubtedly be hurt by rising rates.