The Securities and Exchange Commission uncovered a number of compliance issues at the credit rating services in 2013, according to a report released by the federal regulator at the end of December. However, compliance is improving compared with previous exams conducted by the SEC. In exams covering rating activity in 2013, the SEC found issues ranging from conflicts of interest to adherence to policies for reviewing credit ratings to the use of affiliates or third-party contractors. The SEC didn’t single out any of the rating services other than to note whether an issue occurred at one of the big three rating firms or at one of several smaller rating services. For example, the SEC said...