After the earnings announcement, the stock rose to more than $486 in extended trading.

The earnings announcement was made after the stock market closed.

Its shares closed yesterday, before the earnings announcement, at $30.94, up $1.31 for the day.

The stock rose $2.1875 yesterday ahead of its earnings announcement.

Then came the earnings announcement and yesterday's 20 percent decline.

"That is a group where you don't have to worry about earnings announcements."

The company also said the earnings announcement would discuss "related matters."

Before the earnings announcement, they closed at $29.58, up 36 cents.

The company's shares closed up 3 cents at $24.13 today before the earnings announcement.

Both made negative earnings announcements in the last two weeks.