S&P 500 has its worst week in two years amid weakness in Europe. Ukraine tensions and slow growth in Europe weigh.» Read More
Thursday's market selloff was like Wall Street's Ebola outbreak. But the panic is likely to subside, says "Fast Money" trader Jon Najarian.
July's employment report is expected to be strong—good news for the economy, but possibly bad news for markets.
Dow has worst day in six months amid concerns from Ukraine, Portugal and Argentina. U.S. data and earnings hurt too.