Efficiency and sustainability of bond market: Evidence from aftermarket trading of US corporate bond offerings

Abstract

We find that for bond offerings that are non-self-marketed, there is a significantly larger proportion of institutional-sized sell trades than buy. In stark contrast, for self-marketed offerings by underwriters, immediate post-offer trading is characterized by a larger proportion of institutional-sized buy trades than sell. We also find evidence suggesting that retail investors, who are initially shut out of the offering deals, buy bonds in the secondary market at a higher price. Our evidence suggests that certain institutional investors receiving allocations of non-self-marketed offerings flip them for a quick profit. The systematic disparity in aftermarket trading immediately following self-marketed versus non-self-marketed bond offerings suggests that the offering process is inefficient, which may have implications on the sustainability of bond offering process.