This is what markets are like.

This quote by Troy Osinoff from yesterdays Forbes interview (which I also just blogged) is timely "Spikes and collapses are largely either (a) a market reaction to new information or (b) the entrance of another big player into the market.... The sudden influx of sell orders attracts more sell orders, and the snowball effect can cause a short-term pullback."

Market corrections are normal.