A new year means a new strategy for one trader hoping for better returns in the Halftime Portfolio—a stock picking challenge between six of the CNBC show's regular contributors.
"What I learned from last year's competition is that I started too conservative. Then I tried to get aggressive at the end of the year—it didn't work," said Josh Brown of Ritholtz Wealth Management.
Brown followed a bottom-up, actively-managed approach in 2014, making seven trades, but ultimately ending with a 14 percent loss in his portfolio.
So in 2015, this trader is taking a page out of the quants' book.