For the past 15 years, trust preferred securities (TruPS) have constituted a significant percentage of the capital of many financial institutions, mostly bank holding companies.Their ubiquity, both as a source of capital and as a common investment for banks, made them a quiet constant for many financial institutions. Even in the chaos of the Great Recession, standard TruPS terms allowed for the deferral of interest payments for up to five years, easing institutions’ cash-flow burdens during those volatile times.

On 13th August 2013, the US Department of Justice (DOJ) and attorneys general from six US states and the District of Columbia filed suit in the US District Court for the District of Columbia to block the merger between US Airways and American Airlines. Days before, a group of American Airlines customers filed a claim that the merger would violate Section 7 of the Clayton Act.