The Dow Jones industrials closed Monday at its

Galvanized (使……感到震惊) by hopes that the market’s worst days are over, investors bought stocks enthusiastically Monday, sending the Dow Jones industrials surging more than 400 points for the second time in four sessions.  The Dow also had its third-largest one-day point gain. The stunning advance, which saw the Nasdaq composite index rise more than 70 points, followed the market’s first upbeat week in more than two months, Analysts believe investors, becoming more comfortable about earnings and less worried about corporate bookkeeping, are ready to buy again. Prices depressed by 12 weeks of selling have also been a big draw. The Dow closed at its first high of the session, up 447.49, or 5.4 percent, at 8,711.88, its third-best one-day point gain ever.