U.S. stocks jumped the most in four years on Tuesday (September 18) after the Federal Reserve slashed interest rates and raised hopes the economy could ride out a prolonged housing slump and turmoil in the credit market. The cut in the Fed's benchmark short-term rate, the first in four years, was more aggressive than many investors had expected: it now stands at 4.75 percent, its lowest level since May of last year. "Now that the Federal Reserve has done something that is strong, decisive, unexpected, and I think the assessment of the markets, both the bond market and the stock market, collectively will be that we are not headed towards a recession, that the economy is going to resume its recovery and the bull market will also be restored," said Johnson-Illington Advisors Strategist, Hugh Johnson. For the most part, people on Wall Street saw the rate cut as a positive step by the Fed, and were not worried about possible inflation. "Inflation is more of a secondary concern. I think the Fed was really forced to make this move and I think it was wise move. This will be a shot in the arm for the economy," said William Butler. Tuesday was the blue-chip Dow average's best one-day percentage gain since 2003.