Gmenfan your concern is well-founded; re. Bear Stearns JPMC closed at $43 on the day it completed its $10/share aquisition. 1.5 months later JPMC shares were down almost 30% to $31. Three days after announcing conversion of BS prefs to new issues, saw a rebound to $40. Granted WMI and BS are two vastly different situations, but it is interesting to analyze PPS movement following acquisitions and equity conversions.
JPMC May 30, 2008 - $43 Bear Stearns buyout completed Jul 15, 2008 - $31 JPMC low Jul 18, 2008 - $40 Following BS P conversion