Within a week, the stock had lost 20 percent of its value.

Six have lost more than 70 percent of their value.

Since then, the stock has lost 94 percent of its value.

The stock has lost 75 percent of its value in the past 12 months.

The stock lost 26 percent of its value the next day.

They have lost 85 percent of their value in the last 12 months.

The stock has lost 70 percent of its value in just over two weeks.

The company's stock has lost 66.5 percent of its value in the last year.

The company's stock has lost 56 percent of its value in the last 12 months.

The company's stock has lost 21.9 percent of its value over the last week.