Japan's Nikkei Stock Average rocketed on Friday after Japanese currency plunged to 4-month record low on Goldman Sachs forecast the Yen will continue to decline. Nikkei 225 jumped 1.71% or 157.85 points and closed at 9,395.95 fuelled by export shares. Honda surged 2.4% while Toyota Motor and Mazda Motor each gained 0.6%. Inpex rallied 4.8% on accelerating crude prices. Trend Micro tumbled 9% after forecasting a profit decline of 32% for the first quarter in 2012.