11 January 2018 - stock analysts
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Amateur stock traders listen to the public claims of stock analysts
and believe them to an extent. Professional traders know better and
rely on their own efforts. New research from the group of Nicola
Gennaioli claims that neither strategy is correct: You should listen
to analysts and do the exact opposite; if you invest in the stocks
that analysts are least optimistic about, you can double your returns.
But beware: By the miracle of financial markets, once you make a true
claim about a way to profit, it ceases to be true because arbitrageurs
jump in and take advantage. Every time you find ignorant people, the
market intervenes and makes them as knowledgeable as everybody else.