Stocks slump with bad economic data.
Volatility increase as market is transitioning from fear to panic.
Banks sank after reporting earnings while a drop in retail sales fuel the concern about the economy.
The spread of Ebola has started to affect investor psychology, contributing to a decline in U.S. airline stocks.
The S&P 500 had its worst intraday retreat since 2011.
The calendar for tomorrow is shaped by a few economic events and information but most probably will not bring much needed changes.