Wall Street's main indices rose yesterday, boosted by mega-cap tech and growth stocks. A surge in Twitter after Elon Musk revealed his stake in the company also pushed indices up. However, Investor restrained themselves amid cautionary signals from the bond market and talk of more sanctions against Russia over Ukraine. The Dow Jones Industrial Average index rose 0.3 percent, the S&P 500 climbed 0.8 percent and the Nasdaq Composite surged 1.9 percent.