A sharp drop in net income from servicing operations during the third quarter was the key factor in a decline in overall mortgage-banking profitability for a group of major lenders, according to a new analysis by Inside Mortgage Trends. The 11 publicly traded companies, which include most of the top originators and servicers in the industry, reported a combined $1.25 billion in net income from servicing, including the gains or losses from hedging their mortgage servicing rights. That was down 43.8 percent from the second quarter and was the lowest net income from servicing for the group since the third quarter of last year.Two of the companies reported increased servicing revenue. At Huntington Bank, net servicing income nearly tripled ...