The momentum stocks have enjoyed since the beginning of the year waned some last week as investors took time to consider economic and trade developments. The tech-heavy Nasdaq gained the most, up almost 1.0%. At the other end of the spectrum was the Global Dow, which fell 0.15%. In between, the Dow and the Russell 2000 almost broke even, while the S&P 500 pushed ahead by about 0.4%. For the year, the major indexes listed here are still doing quite well. The Dow and S&P 500 are off to their best start to a year in over 30 years, while the Nasdaq has enjoyed 10 straight weeks of positive returns.