The outlook for the private mortgage insurers remains grim as MI companies continued reporting significant operating losses in 2011 and, unless positive factors come into play by mid-2012, time may soon run out for the sector, according to a Standard & Poors analysis. As the U.S. economy struggles in recovery, little hope remains for mortgage insurers to begin reporting operating profits by the end of this year, said S&P senior credit analyst Ron Joas. Sluggish employment growth and the depressed housing market have resulted in more delinquencies that pose further...(Includes one data chart)