Guido Maria Brera, along with two other founding members, created the Kairos Group in 1999, when he was not yet thirty years old. He has repeatedly ranked among the top hedge managers in Europe, and today leads the Investment team of the Julius Baer Kairos Group.
In 2014 he published the best selling novel I Diavoli. La finanza raccontata dalla sua scatola nera, based on which the author developed the eponymous website idiavoli.com, an innovative narrative journalism project focusing on finance and geopolitics.