The pair is rebounding on the support at 88.80, trading at 88.88. If it breaks that support, the perspectives for an attack to 88.20 are clear. However, if there's a rebound, traders will focus on the resistance at 89.03 yens per dollar.The bands of Bollinger show a volatility of 145 pips in the hour, while the RSI is clearly oversold. The Stochastic shows selling signs, right now.