Stocks made gains after Federal Reserve Chairman Jerome Powell testified before the U.S. Senate, setting expectations for a continuation of the Fed's gradual approach to raising interest rate. The Dow Jones Industrial Average (DJINDICES: ^DJI) and the S&P 500 (SNPINDEX: ^GSPC) opened the session lower but rose during morning trading.Data source: Yahoo! Finance.Materials stocks led the market, with the Materials Select Sector SPDR ETF (NYSEMKT: XLB) adding 1.3%. Home construction stocks rose on Powell's comments about strong economic growth and moderate inflation; the iShares US Home Construction ETF (NYSEMKT: ITB) jumped 2.3%.Continue reading