Wall Street advances on trade hopes, tame inflation data

All three major U.S. stock indexes gained ground, with the S&P 500 and the Nasdaq posting their fourth consecutive advances.For the second straight day, the S&P 500 closed above its 200-day moving average, a key technical level.Stocks briefly pared gains following a late-morning tweet by U.S. Senator Marco Rubio saying he would introduce a bill to "tax corporate buybacks the same way as dividends."In Beijing, U.S. Treasury Secretary Steven Mnuchin said "so far, so good," regarding ongoin