Brazil's Bovespa closed at 54,099.08, down -0.70%

Canada's S&p/tsx Composite closed at 13,886.43, down -0.01%

Euro Zone Finance Ministers to Hold Extraordinary Meeting on Greece on may 9 - Dijsselbloem's Spokesperson

Ny Federal Reserve says No Forex Swaps With Foreign Central Banks in Latest Week

Nasdaq Unofficially Closes down 57.48 Points, or 1.18 Percent, at 4,805.67