I should have highlighted this paragraph from the WSJ article:
>> Winnowing out the particular antibodies within Gammagard that work best could be key for fashioning a new Alzheimer's weapon from Baxter's drug. There is no way supplies could meet the demand of the vast and growing Alzheimer's population, according to researchers. But it may be possible to isolate the effective antibodies and manufacture them through other means. <<
How many different antibodies does IVIG contain?
“The efficient-market hypothesis may be the foremost piece of B.S. ever promulgated in any area of human knowledge!”