U.S. stocks closed lower today, Wednesday, as Jerome Powell, the Chairman of the Federal Reserve, reiterated the bank's commitment to curb inflation during his testimony before Congress, indicating the possibility of raising interest rates again. The three main U.S. stock indices recorded losses for the third consecutive session, with technology sector stocks and related sectors suffering the largest losses. According to preliminary data, the "S&P 500" index closed down by 0.52%, while the "Nasdaq" composite fell by 1.21%. The "Dow Jones" industrial average dropped by 0.30%.