但是,此类基金的年收益由于尚未被评级,因此风险更高,到2011年1月31日,收益为4.53%,理柏公司的资深研究分析师汤姆•罗西恩介绍说。
The 12-month yield on the loans , which are Unrated and therefore riskier , was 4.53 % as of 1 / 31 / 11 , says Tom roseen , senior Lipper research analyst .