A former Goldman Sachs trader pleaded guilty to wire fraud Wednesday, admitting that he caused his company to lose $118 million in 2007 when he put $8 billion at risk. Matthew Marshall Taylor, 34, said he took the position on a futures contract traded electronically through the Chicago Mercantile Exchange in December 2007 to enhance his reputation and boost his earnings in a year when he made $150,000 in salary and $1.6 million in bonuses. At the time, he was working at Goldman Sachs in Manhattan. According to court papers filed in Manhattan, Taylor entered fictitious information in trading account records and lied to company representatives to cover up the fact that he had put 10 times more money at risk in the trade than he was allowed. He claimed that the $8 billion at risk was actually only $65 million, the papers said.