Group 1 - Fannie Mae, officially known as the Federal National Mortgage Association, plays a crucial role in supporting the U.S. housing industry by purchasing mortgages from financial institutions [1] - The company is involved in income investing through various financial instruments, including common shares, preferred shares, and bonds [1] - Fannie Mae's operations are essential for maintaining liquidity in the mortgage market, which in turn supports homeownership and housing stability in the United States [1] Group 2 - The article does not provide specific financial data or performance metrics related to Fannie Mae [2][3]