Fears over bank nationalization drive markets to big losses; Dow drops 100 points

Stocks capped a brutal week with another trading session dominated by dismal performances by General Electric (GE), banks and energy companies. The Dow Jones industrial average closed at 7,366, down 100 points, or 1.34 percent, while the broader S&P 500 fell 1.14 percent to 770 and the tech-heavy Nasdaq dropped 0.11 percent to close at 1,441.

It'd be an understatement to say it was a tough week in the markets. In fact, the Dow, which has lost 6.2 percent since the start of trading on Tuesday, hasn't seen a week this bad since October. The S&P 500 fared even worse, losing 6.9 percent this week.