Today, as in Europe, will expire futures contracts and options called quadruple witching, which shall cause a much higher than average volatility and the occurrence of erratic movements. Nowadays, the most sensitive time 13h30 (opening) and 18h00. The day of expiration of options and futures is statistically positive for positive markets, and also considering the losses of recent days, it is not excluded a hypothetical recovery. Even if this move materializes, the technical situation of medium-term American markets remains delicate.