While convertible offerings announced between 1984 and 1999 induce average abnormal stock returns of −1.69%, convertible announcement effects over the period 2000 to 2008 are more than twice as negative (−4.59%). We hypothesize that this evolution is attributable to a shift in the...

We show that run-ups in U.S. target firm stock returns preceding merger announcements have declined drastically over recent decades. The negative trend in target run-ups cannot be fully explained by changes in deal or target characteristics associated with merger anticipation. However, it...