Sterling Infrastructure (STRL) is one of the stocks most watched by Zacks.com visitors lately. So, it might be a good idea to review some of the factors that might affect the near-term performance of the stock.Over the past month, shares of this civil construction company have returned +17.1%, compared to the Zacks S&P 500 composite's +1.6% change. During this period, the Zacks Engineering - R and D Services industry, which Sterling Infrastructure falls in, has gained 0.2%. The key question now is: What cou ...