Shares of Facebook (FB) are up nine percent year-to-date, topping the returns of fellow FANG stocks Amazon (AMZN) , Netflix (NFLX) and Google (GOOGL) . Barry Randall, founder of Crabtree Asset Management at Covestor, said the social network giant will continue to lead the way because of assets it has yet to really unload on the market. 'They have a murderer's row of back-up social networks right behind them like WhatsApp and Instagram that also have hundreds of millions of users,' said Randall. 'In the second half of this year we are going to start to see more and more of Facebook utilizing those other networks to drive traffic back to the mothership.' Randall is also bullish on Advanced Energy Industries (AEIS) up 28 percent year-to-date, saying the thin film power conversion player will rise with both the semiconductor and glass markets. First Solar (FSLR) shares are down 28 percent so far in 2016. Randall recommends loading up on the environmentally sustainable stock now that the price has fallen because it generates a lot of cash, unlike many other highly subsidized solar players.