The stock market snapped back today after early morning trading sent key indexes plunging following the de facto devaluation of Brazil's currency by 8.6% in the wake of the surprise resignation of Gustavo Franco, president of the Brazilian central bank. The Dow Jones industrial average, down 260 points early in the day, closed at 9350.07, down 1.32%, or 124.61 points. The Nasdaq composite, which was down 114 points during the day, closed at 2317.32, down 0.15%, or 3.43 points. The S&P 500 closed at 1234.38, down 0.41%, or 5.13 points. Volume on the New York Stock Exchange was 932 million shares, and on the Nasdaq, 1.18 billion shares. All closing prices and volume numbers are preliminary.