Banks’ net interest margins continued to tighten in the fourth quarter. Net interest income, aided by loan growth, held up better.
Margins fell from the third quarter at about two-thirds of the companies in a group of publicly traded banks with more than $5 billion of assets, but net interest income fell at only about half of those institutions. (Use the dropdown in the graphic below to see net interest income data for the group, which excludes companies that bought banks or branches last year. Select the other tabs for industrywide overviews.)