The amount of subprime mortgages outstanding as of the second quarter of 2011 has declined by nearly 50 percent compared with the market’s peak of $1.0 trillion in the second quarter of 2007, according to an analysis by Inside Nonconforming Markets. However, subprime servicers have reasons to be optimistic, according to industry analysts.Subprime mortgage delinquencies increased in the first and second quarters of 2011 after declining throughout 2010 ... [includes one data chart]