Professor Jay Ritter of the University of Florida is a subject matter expert in this area: http://bear.warrington.ufl.edu/ritter/ipodata.htm http://bear.warrin

Professor Jay Ritter of the University of Florida is a subject matter expert in this area: http://bear.warrington.ufl.edu/ritter/ipodata.htm http://bear.warrington.ufl.edu/ritter/ipodata.htm