Hedge fund guru Joel Greenblatt is finding value in the technology and retail sectors. Greenblatt tells CNBC that he’s high on tech firms like Apple and Microsoft, and retailers like Best Buy. He says some of the firms are facing headwinds, but that the headwinds are actually good, because they’ve lowered expectations and baked negative scenarios into the prices already. “If you put together a diversified portfolio of companies that are out of favor and they’re high free cash flow generating, and in good businesses — that’s very powerful over time,” he says.