Small business is lowering its delinquency, firm says.
Credit rater reports record low share of delinquent dollars as economy turns up for small businesses.
Hurricane Sandy, Midwest drought and government spending cuts lead to deterioration in small business credit quality, rise in delinquent debt.
Securitized credit card charge offs declined 31 basis points in May to 4.90%, down from 5.21% in April, according to Moody's Credit Card Indices.
Despite some changes to their operations, the SEC said credit rating agencies still have more room to improve.