Zacks says Cavco Industries (NASDAQ: CVCO) is one of five companies in the home-building industry that offers the least risk and more stable return on investment.  SmarTrend ranks Cavco second with a beta rating of 1.15, and says since it issued an upturn on the stock Feb. 17, its value has increased 5.9 percent.  SmarTrend follows 5,000 stocks throughout the day and issues reports to its subscribers as it discerns trends.